diff --git a/graphics/pokemon/melmetal/back.png b/graphics/pokemon/melmetal/back.png
new file mode 100644
index 0000000000..26889e2d1d
Binary files /dev/null and b/graphics/pokemon/melmetal/back.png differ
diff --git a/graphics/pokemon/melmetal/front.png b/graphics/pokemon/melmetal/front.png
new file mode 100644
index 0000000000..1eaf806721
Binary files /dev/null and b/graphics/pokemon/melmetal/front.png differ
diff --git a/graphics/pokemon/melmetal/icon.png b/graphics/pokemon/melmetal/icon.png
new file mode 100644
index 0000000000..fa70c6b6b5
Binary files /dev/null and b/graphics/pokemon/melmetal/icon.png differ
diff --git a/graphics/pokemon/melmetal/normal.pal b/graphics/pokemon/melmetal/normal.pal
new file mode 100644
index 0000000000..0a1e2b0031
--- /dev/null
+++ b/graphics/pokemon/melmetal/normal.pal
@@ -0,0 +1,19 @@
+JASC-PAL
+0100
+16
+152 208 160
+88 80 72
+136 136 120
+224 128 32
+128 64 32
+248 184 72
+248 224 152
+56 48 48
+32 24 24
+96 96 88
+176 96 40
+16 16 16
+248 248 248
+216 216 216
+176 176 160
+192 40 40
diff --git a/graphics/pokemon/melmetal/shiny.pal b/graphics/pokemon/melmetal/shiny.pal
new file mode 100644
index 0000000000..5cce306323
--- /dev/null
+++ b/graphics/pokemon/melmetal/shiny.pal
@@ -0,0 +1,19 @@
+JASC-PAL
+0100
+16
+152 208 160
+88 80 72
+136 136 120
+216 104 40
+128 48 32
+248 160 80
+248 224 152
+56 48 48
+32 24 24
+96 96 88
+176 72 40
+16 16 16
+248 248 248
+216 216 216
+176 176 160
+0 88 216
diff --git a/graphics/pokemon/meltan/back.png b/graphics/pokemon/meltan/back.png
new file mode 100644
index 0000000000..d2785c36da
Binary files /dev/null and b/graphics/pokemon/meltan/back.png differ
diff --git a/graphics/pokemon/meltan/front.png b/graphics/pokemon/meltan/front.png
new file mode 100644
index 0000000000..97ebff0de7
Binary files /dev/null and b/graphics/pokemon/meltan/front.png differ
diff --git a/graphics/pokemon/meltan/icon.png b/graphics/pokemon/meltan/icon.png
new file mode 100644
index 0000000000..17fb4f96bd
Binary files /dev/null and b/graphics/pokemon/meltan/icon.png differ
diff --git a/graphics/pokemon/meltan/normal.pal b/graphics/pokemon/meltan/normal.pal
new file mode 100644
index 0000000000..5308c0aa08
--- /dev/null
+++ b/graphics/pokemon/meltan/normal.pal
@@ -0,0 +1,19 @@
+JASC-PAL
+0100
+16
+152 208 160
+224 128 32
+176 96 40
+248 184 72
+248 224 152
+248 248 248
+128 64 32
+16 16 16
+88 80 72
+56 48 48
+96 96 88
+216 216 216
+136 136 120
+176 176 160
+112 16 16
+192 40 40
diff --git a/graphics/pokemon/meltan/shiny.pal b/graphics/pokemon/meltan/shiny.pal
new file mode 100644
index 0000000000..236726a3fa
--- /dev/null
+++ b/graphics/pokemon/meltan/shiny.pal
@@ -0,0 +1,19 @@
+JASC-PAL
+0100
+16
+152 208 160
+216 104 40
+176 72 40
+248 160 80
+248 224 152
+248 248 248
+128 48 32
+16 16 16
+88 80 72
+56 48 48
+96 96 88
+216 216 216
+136 136 120
+176 176 160
+0 48 120
+0 88 216
diff --git a/include/constants/species.h b/include/constants/species.h
index 505d744087..bb5ded2690 100644
--- a/include/constants/species.h
+++ b/include/constants/species.h
@@ -809,10 +809,10 @@
 #define SPECIES_STAKATAKA 805
 #define SPECIES_BLACEPHALON 806
 #define SPECIES_ZERAORA 807
+#define SPECIES_MELTAN 808
+#define SPECIES_MELMETAL 809
 
 // Megas
-#define SPECIES_MEGA_GENGAR 808
-#define SPECIES_MEGA_GARDEVOIR 809
 #define SPECIES_MEGA_AMPHAROS 810
 #define SPECIES_MEGA_VENUSAUR 811
 #define SPECIES_MEGA_CHARIZARD_X 812
@@ -859,9 +859,8 @@
 #define SPECIES_MEGA_LOPUNNY 853
 #define SPECIES_MEGA_SALAMENCE 854
 #define SPECIES_MEGA_BEEDRILL 855
-
-#define SPECIES_PRIMAL_KYOGRE 856
-#define SPECIES_PRIMAL_GROUDON 857
+#define SPECIES_MEGA_GENGAR 856
+#define SPECIES_MEGA_GARDEVOIR 857
 
 #define SPECIES_BURMY_SANDY 858
 #define SPECIES_BURMY_TRASH 859
@@ -896,8 +895,10 @@
 #define SPECIES_ALOLAN_MAROWAK 887
 
 // TODO: forms
+#define SPECIES_PRIMAL_KYOGRE 888
+#define SPECIES_PRIMAL_GROUDON 889
 
-#define SPECIES_EGG 888
+#define SPECIES_EGG 890
 #define NUM_SPECIES SPECIES_EGG
 
 // Unown forms, not actual species
@@ -1740,8 +1741,10 @@
 #define NATIONAL_DEX_STAKATAKA 805
 #define NATIONAL_DEX_BLACEPHALON 806
 #define NATIONAL_DEX_ZERAORA 807
+#define NATIONAL_DEX_MELTAN 808
+#define NATIONAL_DEX_MELMETAL 809
 
-#define NATIONAL_DEX_COUNT 808
+#define NATIONAL_DEX_COUNT 810
 
 // Hoenn Dex(ORAS) Index Defines
 #define HOENN_DEX_NONE 0
diff --git a/include/graphics.h b/include/graphics.h
index 8b736f70b4..8e348b4b4a 100644
--- a/include/graphics.h
+++ b/include/graphics.h
@@ -882,6 +882,8 @@ extern const u32 gMonFrontPic_Naganadel[];
 extern const u32 gMonFrontPic_Stakataka[];
 extern const u32 gMonFrontPic_Blacephalon[];
 extern const u32 gMonFrontPic_Zeraora[];
+extern const u32 gMonFrontPic_Meltan[];
+extern const u32 gMonFrontPic_Melmetal[];
 
 extern const u32 gMonBackPic_CircledQuestionMark[];
 extern const u32 gMonBackPic_Bulbasaur[];
@@ -1729,6 +1731,8 @@ extern const u32 gMonBackPic_Naganadel[];
 extern const u32 gMonBackPic_Stakataka[];
 extern const u32 gMonBackPic_Blacephalon[];
 extern const u32 gMonBackPic_Zeraora[];
+extern const u32 gMonBackPic_Meltan[];
+extern const u32 gMonBackPic_Melmetal[];
 
 extern const u32 gMonPalette_CircledQuestionMark[];
 extern const u32 gMonPalette_Bulbasaur[];
@@ -2550,6 +2554,8 @@ extern const u32 gMonPalette_Naganadel[];
 extern const u32 gMonPalette_Stakataka[];
 extern const u32 gMonPalette_Blacephalon[];
 extern const u32 gMonPalette_Zeraora[];
+extern const u32 gMonPalette_Meltan[];
+extern const u32 gMonPalette_Melmetal[];
 
 extern const u32 gMonShinyPalette_CircledQuestionMark[];
 extern const u32 gMonShinyPalette_Bulbasaur[];
@@ -3370,6 +3376,8 @@ extern const u32 gMonShinyPalette_Naganadel[];
 extern const u32 gMonShinyPalette_Stakataka[];
 extern const u32 gMonShinyPalette_Blacephalon[];
 extern const u32 gMonShinyPalette_Zeraora[];
+extern const u32 gMonShinyPalette_Meltan[];
+extern const u32 gMonShinyPalette_Melmetal[];
 
 extern const u32 gMonFrontPic_MegaVenusaur[];
 extern const u32 gMonBackPic_MegaVenusaur[];
@@ -4491,6 +4499,8 @@ extern const u8 gMonIcon_Naganadel[];
 extern const u8 gMonIcon_Stakataka[];
 extern const u8 gMonIcon_Blacephalon[];
 extern const u8 gMonIcon_Zeraora[];
+extern const u8 gMonIcon_Meltan[];
+extern const u8 gMonIcon_Melmetal[];
 extern const u8 gMonIcon_MegaVenusaur[];
 extern const u8 gMonIcon_MegaCharizardX[];
 extern const u8 gMonIcon_MegaCharizardY[];
diff --git a/src/data/graphics/pokemon.h b/src/data/graphics/pokemon.h
index 4e28ff9156..830ca6022d 100644
--- a/src/data/graphics/pokemon.h
+++ b/src/data/graphics/pokemon.h
@@ -845,6 +845,8 @@ const u32 gMonFrontPic_Naganadel[] = INCBIN_U32("graphics/pokemon/naganadel/fron
 const u32 gMonFrontPic_Stakataka[] = INCBIN_U32("graphics/pokemon/stakataka/front.4bpp.lz");
 const u32 gMonFrontPic_Blacephalon[] = INCBIN_U32("graphics/pokemon/blacephalon/front.4bpp.lz");
 const u32 gMonFrontPic_Zeraora[] = INCBIN_U32("graphics/pokemon/zeraora/front.4bpp.lz");
+const u32 gMonFrontPic_Meltan[] = INCBIN_U32("graphics/pokemon/meltan/front.4bpp.lz");
+const u32 gMonFrontPic_Melmetal[] = INCBIN_U32("graphics/pokemon/melmetal/front.4bpp.lz");
 
 const u32 gMonBackPic_CircledQuestionMark[] = INCBIN_U32("graphics/pokemon/circled_question_mark/back.4bpp.lz");
 const u32 gMonBackPic_Bulbasaur[] = INCBIN_U32("graphics/pokemon/bulbasaur/back.4bpp.lz");
@@ -1692,6 +1694,8 @@ const u32 gMonBackPic_Naganadel[] = INCBIN_U32("graphics/pokemon/naganadel/back.
 const u32 gMonBackPic_Stakataka[] = INCBIN_U32("graphics/pokemon/stakataka/back.4bpp.lz");
 const u32 gMonBackPic_Blacephalon[] = INCBIN_U32("graphics/pokemon/blacephalon/back.4bpp.lz");
 const u32 gMonBackPic_Zeraora[] = INCBIN_U32("graphics/pokemon/zeraora/back.4bpp.lz");
+const u32 gMonBackPic_Meltan[] = INCBIN_U32("graphics/pokemon/meltan/back.4bpp.lz");
+const u32 gMonBackPic_Melmetal[] = INCBIN_U32("graphics/pokemon/melmetal/back.4bpp.lz");
 
 const u32 gMonPalette_CircledQuestionMark[] = INCBIN_U32("graphics/pokemon/circled_question_mark/normal.gbapal.lz");
 const u32 gMonPalette_Bulbasaur[] = INCBIN_U32("graphics/pokemon/bulbasaur/normal.gbapal.lz");
@@ -2513,6 +2517,8 @@ const u32 gMonPalette_Naganadel[] = INCBIN_U32("graphics/pokemon/naganadel/norma
 const u32 gMonPalette_Stakataka[] = INCBIN_U32("graphics/pokemon/stakataka/normal.gbapal.lz");
 const u32 gMonPalette_Blacephalon[] = INCBIN_U32("graphics/pokemon/blacephalon/normal.gbapal.lz");
 const u32 gMonPalette_Zeraora[] = INCBIN_U32("graphics/pokemon/zeraora/normal.gbapal.lz");
+const u32 gMonPalette_Meltan[] = INCBIN_U32("graphics/pokemon/meltan/normal.gbapal.lz");
+const u32 gMonPalette_Melmetal[] = INCBIN_U32("graphics/pokemon/melmetal/normal.gbapal.lz");
 
 const u32 gMonShinyPalette_CircledQuestionMark[] = INCBIN_U32("graphics/pokemon/circled_question_mark/shiny.gbapal.lz");
 const u32 gMonShinyPalette_Bulbasaur[] = INCBIN_U32("graphics/pokemon/bulbasaur/shiny.gbapal.lz");
@@ -3333,6 +3339,8 @@ const u32 gMonShinyPalette_Naganadel[] = INCBIN_U32("graphics/pokemon/naganadel/
 const u32 gMonShinyPalette_Stakataka[] = INCBIN_U32("graphics/pokemon/stakataka/shiny.gbapal.lz");
 const u32 gMonShinyPalette_Blacephalon[] = INCBIN_U32("graphics/pokemon/blacephalon/shiny.gbapal.lz");
 const u32 gMonShinyPalette_Zeraora[] = INCBIN_U32("graphics/pokemon/zeraora/shiny.gbapal.lz");
+const u32 gMonShinyPalette_Meltan[] = INCBIN_U32("graphics/pokemon/meltan/shiny.gbapal.lz");
+const u32 gMonShinyPalette_Melmetal[] = INCBIN_U32("graphics/pokemon/melmetal/shiny.gbapal.lz");
 
 const u32 gMonFrontPic_MegaVenusaur[] = INCBIN_U32("graphics/pokemon/mega_venusaur/front.4bpp.lz");
 const u32 gMonBackPic_MegaVenusaur[] = INCBIN_U32("graphics/pokemon/mega_venusaur/back.4bpp.lz");
@@ -4454,6 +4462,8 @@ const u8 gMonIcon_Naganadel[] = INCBIN_U8("graphics/pokemon/naganadel/icon.4bpp"
 const u8 gMonIcon_Stakataka[] = INCBIN_U8("graphics/pokemon/stakataka/icon.4bpp");
 const u8 gMonIcon_Blacephalon[] = INCBIN_U8("graphics/pokemon/blacephalon/icon.4bpp");
 const u8 gMonIcon_Zeraora[] = INCBIN_U8("graphics/pokemon/zeraora/icon.4bpp");
+const u8 gMonIcon_Meltan[] = INCBIN_U8("graphics/pokemon/meltan/icon.4bpp");
+const u8 gMonIcon_Melmetal[] = INCBIN_U8("graphics/pokemon/melmetal/icon.4bpp");
 const u8 gMonIcon_MegaVenusaur[] = INCBIN_U8("graphics/pokemon/mega_venusaur/icon.4bpp");
 const u8 gMonIcon_MegaCharizardX[] = INCBIN_U8("graphics/pokemon/mega_charizard_x/icon.4bpp");
 const u8 gMonIcon_MegaCharizardY[] = INCBIN_U8("graphics/pokemon/mega_charizard_y/icon.4bpp");
diff --git a/src/data/pokemon/base_stats.h b/src/data/pokemon/base_stats.h
index a544e7f75e..758d13d16f 100644
--- a/src/data/pokemon/base_stats.h
+++ b/src/data/pokemon/base_stats.h
@@ -20599,6 +20599,52 @@ const struct BaseStats gBaseStats[] =
         .bodyColor = BODY_COLOR_YELLOW,
     },
 
+    [SPECIES_MELTAN] =
+    {
+        .baseHP        = 46, 
+        .baseAttack    = 65,
+        .baseDefense   = 65,
+        .baseSpeed     = 34,
+        .baseSpAttack  = 55,
+        .baseSpDefense = 35,
+        .type1 = TYPE_STEEL,
+        .type2 = TYPE_STEEL,
+        .catchRate = 3,
+        .expYield = 135,
+        .evYield_Attack = 1,
+        .genderRatio = MON_GENDERLESS,
+        .eggCycles = 120,
+        .friendship = 0,
+        .growthRate = GROWTH_SLOW,
+        .eggGroup1 = EGG_GROUP_UNDISCOVERED,
+        .eggGroup2 = EGG_GROUP_UNDISCOVERED,
+        .abilities = {ABILITY_MAGNET_PULL, ABILITY_NONE},
+        .bodyColor = BODY_COLOR_GRAY,
+    },
+    
+    [SPECIES_MELMETAL] =
+    {
+        .baseHP        = 135, 
+        .baseAttack    = 143,
+        .baseDefense   = 143,
+        .baseSpeed     = 34,
+        .baseSpAttack  = 80,
+        .baseSpDefense = 65,
+        .type1 = TYPE_STEEL,
+        .type2 = TYPE_STEEL,
+        .catchRate = 3,
+        .expYield = 270,
+        .evYield_Attack = 3,
+        .genderRatio = MON_GENDERLESS,
+        .eggCycles = 120,
+        .friendship = 0,
+        .growthRate = GROWTH_SLOW,
+        .eggGroup1 = EGG_GROUP_UNDISCOVERED,
+        .eggGroup2 = EGG_GROUP_UNDISCOVERED,
+        .abilities = {ABILITY_IRON_FIST, ABILITY_NONE},
+        .bodyColor = BODY_COLOR_GRAY,
+    },
+
     [SPECIES_MEGA_GENGAR] =
     {
         .baseHP        = 60,
diff --git a/src/data/pokemon/level_up_learnset_pointers.h b/src/data/pokemon/level_up_learnset_pointers.h
index 8d5130491a..b8dcd5edd0 100644
--- a/src/data/pokemon/level_up_learnset_pointers.h
+++ b/src/data/pokemon/level_up_learnset_pointers.h
@@ -820,6 +820,8 @@ const struct LevelUpMove *const gLevelUpLearnsets[NUM_SPECIES] =
     [SPECIES_STAKATAKA] = sStakatakaLevelUpLearnset,
     [SPECIES_BLACEPHALON] = sBlacephalonLevelUpLearnset,
     [SPECIES_ZERAORA] = sZeraoraLevelUpLearnset,
+    [SPECIES_MELTAN] = sMeltanLevelUpLearnset,
+    [SPECIES_MELMETAL] = sMelmetalLevelUpLearnset,
     // Megas have the same learnsets
     [SPECIES_MEGA_VENUSAUR] = sVenusaurLevelUpLearnset,
     [SPECIES_MEGA_CHARIZARD_X] = sCharizardLevelUpLearnset,
diff --git a/src/data/pokemon/level_up_learnsets.h b/src/data/pokemon/level_up_learnsets.h
index c21185402a..1c225a76b5 100644
--- a/src/data/pokemon/level_up_learnsets.h
+++ b/src/data/pokemon/level_up_learnsets.h
@@ -7622,6 +7622,16 @@ static const struct LevelUpMove sZeraoraLevelUpLearnset[] = {
     LEVEL_UP_END
 };
 
+static const struct LevelUpMove sMeltanLevelUpLearnset[] = {
+    LEVEL_UP_MOVE( 1, MOVE_TACKLE),
+    LEVEL_UP_END
+};
+
+static const struct LevelUpMove sMelmetalLevelUpLearnset[] = {
+    LEVEL_UP_MOVE( 1, MOVE_TACKLE),
+    LEVEL_UP_END
+};
+
 static const struct LevelUpMove sAlolanRattataLevelUpLearnset[] = {
     LEVEL_UP_MOVE( 1, MOVE_TACKLE),
     LEVEL_UP_END
diff --git a/src/data/pokemon/pokedex_entries.h b/src/data/pokemon/pokedex_entries.h
index 35f1848f86..2b95380281 100644
--- a/src/data/pokemon/pokedex_entries.h
+++ b/src/data/pokemon/pokedex_entries.h
@@ -9695,4 +9695,28 @@ const struct PokedexEntry gPokedexEntries[] =
 		.trainerScale = 256,
 		.trainerOffset = 0,
 	},
+
+	[NATIONAL_DEX_MELTAN] =
+	{
+		.categoryName = _("Hex Nut"),
+		.height = 2,
+		.weight = 80,
+		.description = gMeltanPokedexText,
+		.pokemonScale = 640,
+		.pokemonOffset = 23,
+		.trainerScale = 256,
+		.trainerOffset = 0,
+	},
+
+	[NATIONAL_DEX_MELMETAL] =
+	{
+		.categoryName = _("Hex Nut"),
+		.height = 25,
+		.weight = 800,
+		.description = gMelmetalPokedexText,
+		.pokemonScale = 255,
+		.pokemonOffset = 1,
+		.trainerScale = 387,
+		.trainerOffset = 2,
+	},
 };
diff --git a/src/data/pokemon/pokedex_text.h b/src/data/pokemon/pokedex_text.h
index 9ae694dc98..0de25a5f5e 100644
--- a/src/data/pokemon/pokedex_text.h
+++ b/src/data/pokemon/pokedex_text.h
@@ -4824,26 +4824,36 @@ const u8 gMarshadowPokedexText[] = _(
     "This Pokémon is craven and cowering.");
 
 const u8 gPoipolePokedexText[] = _(
-	"This Ultra Beast is well enough\n"
-	"liked to be chosen as a\n"
-	"first partner in its own world.");
+    "This Ultra Beast is well enough\n"
+    "liked to be chosen as a\n"
+    "first partner in its own world.");
 
 const u8 gNaganadelPokedexText[] = _(
-	"It stores hundreds of liters of poisonous\n"
-	"liquid inside its body. It is one of the\n"
-	"organisms known as UBs.");
+    "It stores hundreds of liters of poisonous\n"
+    "liquid inside its body. It is one of the\n"
+    "organisms known as UBs.");
 
 const u8 gStakatakaPokedexText[] = _(
-	"It appeared from an Ultra Wormhole. Each\n"
-	"one appears to be made up of many life-\n"
-	"forms stacked one on top of each other.");
+    "It appeared from an Ultra Wormhole. Each\n"
+    "one appears to be made up of many life-\n"
+    "forms stacked one on top of each other.");
 
 const u8 gBlacephalonPokedexText[] = _(
-	"It slithers toward people and explode\n"
-	"its head without warning. It is\n"
-	"one kind of Ultra Beast.");
+    "It slithers toward people and explode\n"
+    "its head without warning. It is\n"
+    "one kind of Ultra Beast.");
 
 const u8 gZeraoraPokedexText[] = _(
-	"It approaches its enemies at the speed\n"
-	"of lightning, then tears them limb from\n"
-	"limb with its sharp claws.");
+    "It approaches its enemies at the speed\n"
+    "of lightning, then tears them limb from\n"
+    "limb with its sharp claws.");
+
+const u8 gMeltanPokedexText[] = _(
+    "It melts particles of iron and other metals\n"
+    "found in the subsoil, so it can absorb them\n"
+    "into its body of molten steel.");
+
+const u8 gMelmetalPokedexText[] = _(
+    "Revered long ago for its capacity to create\n"
+    "iron from nothing, for some reason it has\n"
+    "come back to life after 3,000 years.");
diff --git a/src/data/pokemon/tmhm_learnsets.h b/src/data/pokemon/tmhm_learnsets.h
index d1dee7209e..c006a10968 100644
--- a/src/data/pokemon/tmhm_learnsets.h
+++ b/src/data/pokemon/tmhm_learnsets.h
@@ -19182,6 +19182,10 @@ const u32 gTMHMLearnsets[][2] =
 											| TMHM(TM25_THUNDER)
 											| TMHM(TM24_THUNDERBOLT)
 											| TMHM(TM06_TOXIC)),
+	//TMs of LGPE don't match with USUM
+    [SPECIES_MELTAN] = TMHM_LEARNSET(TMHM(TM10_HIDDEN_POWER)),
+
+    [SPECIES_MELMETAL] = TMHM_LEARNSET(TMHM(TM10_HIDDEN_POWER)),
 
     [SPECIES_BURMY_SANDY] = TMHM_LEARNSET(TMHM(TM10_HIDDEN_POWER)
 											| TMHM(TM17_PROTECT)),
diff --git a/src/data/pokemon_graphics/back_pic_coordinates.h b/src/data/pokemon_graphics/back_pic_coordinates.h
index bb96b73630..f9e51801c5 100644
--- a/src/data/pokemon_graphics/back_pic_coordinates.h
+++ b/src/data/pokemon_graphics/back_pic_coordinates.h
@@ -4036,6 +4036,16 @@ const struct MonCoords gMonBackPicCoords[] =
         .size = 0x64,
         .y_offset = 0x0B,
     },
+    [SPECIES_MELTAN] =
+    {
+        .size = 0x66,
+        .y_offset = 0x0C,
+    },
+    [SPECIES_MELMETAL] =
+    {
+        .size = 0x66,
+        .y_offset = 0x0D,
+    },
     // Eggs + Unown
     [SPECIES_EGG] =
     {
diff --git a/src/data/pokemon_graphics/back_pic_table.h b/src/data/pokemon_graphics/back_pic_table.h
index a788e7e399..bf140557d6 100644
--- a/src/data/pokemon_graphics/back_pic_table.h
+++ b/src/data/pokemon_graphics/back_pic_table.h
@@ -818,6 +818,8 @@ const struct CompressedSpriteSheet gMonBackPicTable[] =
     SPECIES_SPRITE(STAKATAKA, gMonBackPic_Stakataka),
     SPECIES_SPRITE(BLACEPHALON, gMonBackPic_Blacephalon),
     SPECIES_SPRITE(ZERAORA, gMonBackPic_Zeraora),
+    SPECIES_SPRITE(MELTAN, gMonBackPic_Meltan),
+    SPECIES_SPRITE(MELMETAL, gMonBackPic_Melmetal),
     SPECIES_SPRITE(EGG, gMonFrontPic_Egg),
 
     SPECIES_SPRITE(MEGA_VENUSAUR, gMonBackPic_MegaVenusaur),
diff --git a/src/data/pokemon_graphics/front_pic_anims.h b/src/data/pokemon_graphics/front_pic_anims.h
index 88d86a0472..e64738c957 100644
--- a/src/data/pokemon_graphics/front_pic_anims.h
+++ b/src/data/pokemon_graphics/front_pic_anims.h
@@ -7888,6 +7888,18 @@ static const union AnimCmd sAnim_ZERAORA_1[] =
     ANIMCMD_END,
 };
 
+static const union AnimCmd sAnim_MELTAN_1[] =
+{
+    ANIMCMD_FRAME(0, 1),
+    ANIMCMD_END,
+};
+
+static const union AnimCmd sAnim_MELMETAL_1[] =
+{
+    ANIMCMD_FRAME(0, 1),
+    ANIMCMD_END,
+};
+
 static const union AnimCmd sAnim_MEGA_VENUSAUR_1[] =
 {
 	ANIMCMD_FRAME(0, 1),
@@ -12566,6 +12578,16 @@ static const union AnimCmd *const sAnims_ZERAORA[] ={
     sAnim_ZERAORA_1,
 };
 
+static const union AnimCmd *const sAnims_MELTAN[] ={
+    sAnim_GeneralFrame0,
+    sAnim_MELTAN_1,
+};
+
+static const union AnimCmd *const sAnims_MELMETAL[] ={
+    sAnim_GeneralFrame0,
+    sAnim_MELMETAL_1,
+};
+
 static const union AnimCmd *const sAnims_MEGA_VENUSAUR[] ={
 	sAnim_GeneralFrame0,
 	sAnim_MEGA_VENUSAUR_1,
@@ -13729,6 +13751,8 @@ const union AnimCmd *const *const gMonFrontAnimsPtrTable[] =
     ANIM_CMD(STAKATAKA),
     ANIM_CMD(BLACEPHALON),
     ANIM_CMD(ZERAORA),
+    ANIM_CMD(MELTAN),
+    ANIM_CMD(MELMETAL),
     ANIM_CMD(EGG),
     ANIM_CMD(MEGA_VENUSAUR),
     ANIM_CMD(MEGA_CHARIZARD_X),
diff --git a/src/data/pokemon_graphics/front_pic_coordinates.h b/src/data/pokemon_graphics/front_pic_coordinates.h
index 0eb6ae2675..f88feabea0 100644
--- a/src/data/pokemon_graphics/front_pic_coordinates.h
+++ b/src/data/pokemon_graphics/front_pic_coordinates.h
@@ -4036,6 +4036,16 @@ const struct MonCoords gMonFrontPicCoords[] =
         .size = 0x45,
         .y_offset = 0x04,
     },
+    [SPECIES_MELTAN] =
+    {
+        .size = 0x45,
+        .y_offset = 0x08,
+    },
+    [SPECIES_MELMETAL] =
+    {
+        .size = 0x86,
+        .y_offset = 0x04,
+    },
     [SPECIES_EGG] =
     {
         .size = 0x33,
diff --git a/src/data/pokemon_graphics/front_pic_table.h b/src/data/pokemon_graphics/front_pic_table.h
index 2427835c99..dbb3dc2088 100644
--- a/src/data/pokemon_graphics/front_pic_table.h
+++ b/src/data/pokemon_graphics/front_pic_table.h
@@ -818,6 +818,8 @@ const struct CompressedSpriteSheet gMonFrontPicTable[] =
     SPECIES_SPRITE(STAKATAKA, gMonFrontPic_Stakataka),
     SPECIES_SPRITE(BLACEPHALON, gMonFrontPic_Blacephalon),
     SPECIES_SPRITE(ZERAORA, gMonFrontPic_Zeraora),
+    SPECIES_SPRITE(MELTAN, gMonFrontPic_Meltan),
+    SPECIES_SPRITE(MELMETAL, gMonFrontPic_Melmetal),
     SPECIES_SPRITE(EGG, gMonFrontPic_Egg),
 
     SPECIES_SPRITE(MEGA_VENUSAUR, gMonFrontPic_MegaVenusaur),
diff --git a/src/data/pokemon_graphics/palette_table.h b/src/data/pokemon_graphics/palette_table.h
index 00368f8b50..da568e1c44 100644
--- a/src/data/pokemon_graphics/palette_table.h
+++ b/src/data/pokemon_graphics/palette_table.h
@@ -818,6 +818,8 @@ const struct CompressedSpritePalette gMonPaletteTable[] =
     SPECIES_PAL(STAKATAKA, gMonPalette_Stakataka),
     SPECIES_PAL(BLACEPHALON, gMonPalette_Blacephalon),
     SPECIES_PAL(ZERAORA, gMonPalette_Zeraora),
+    SPECIES_PAL(MELTAN, gMonPalette_Meltan),
+    SPECIES_PAL(MELMETAL, gMonPalette_Melmetal),
     SPECIES_PAL(EGG, gMonPalette_Egg),
 
     SPECIES_PAL(MEGA_VENUSAUR, gMonPalette_MegaVenusaur),
diff --git a/src/data/pokemon_graphics/shiny_palette_table.h b/src/data/pokemon_graphics/shiny_palette_table.h
index da85d5c3ae..880d6ea4e2 100644
--- a/src/data/pokemon_graphics/shiny_palette_table.h
+++ b/src/data/pokemon_graphics/shiny_palette_table.h
@@ -818,6 +818,8 @@ const struct CompressedSpritePalette gMonShinyPaletteTable[] =
     SPECIES_SHINY_PAL(STAKATAKA, gMonShinyPalette_Stakataka),
     SPECIES_SHINY_PAL(BLACEPHALON, gMonShinyPalette_Blacephalon),
     SPECIES_SHINY_PAL(ZERAORA, gMonShinyPalette_Zeraora),
+    SPECIES_SHINY_PAL(MELTAN, gMonShinyPalette_Meltan),
+    SPECIES_SHINY_PAL(MELMETAL, gMonShinyPalette_Melmetal),
     SPECIES_SHINY_PAL(EGG, gMonPalette_Egg),
 
     SPECIES_SHINY_PAL(MEGA_VENUSAUR, gMonShinyPalette_MegaVenusaur),
diff --git a/src/data/text/species_names.h b/src/data/text/species_names.h
index 8829935869..7f98c00946 100644
--- a/src/data/text/species_names.h
+++ b/src/data/text/species_names.h
@@ -819,6 +819,8 @@ const u8 gSpeciesNames[][POKEMON_NAME_LENGTH + 1] = {
     [SPECIES_STAKATAKA] = _("Stakataka"),
     [SPECIES_BLACEPHALON] = _("Blacefalon"),
     [SPECIES_ZERAORA] = _("Zeraora"),
+    [SPECIES_MELTAN] = _("Meltan"),
+    [SPECIES_MELMETAL] = _("Melmetal"),
 
     [SPECIES_MEGA_VENUSAUR] = _("Venusaur"),
     [SPECIES_MEGA_CHARIZARD_X] = _("Charizard"),
diff --git a/src/pokemon.c b/src/pokemon.c
index cb21cd6acf..26adb4a526 100644
--- a/src/pokemon.c
+++ b/src/pokemon.c
@@ -1134,6 +1134,8 @@ const u16 gSpeciesToNationalPokedexNum[NUM_SPECIES] = // Assigns all species to
 	SPECIES_TO_NATIONAL(STAKATAKA),
 	SPECIES_TO_NATIONAL(BLACEPHALON),
 	SPECIES_TO_NATIONAL(ZERAORA),
+	SPECIES_TO_NATIONAL(MELTAN),
+	SPECIES_TO_NATIONAL(MELMETAL),
 };
 
 const u16 gHoennToNationalOrder[HOENN_DEX_COUNT] = // Assigns Hoenn Dex Pokémon (Using National Dex Index)
@@ -2060,6 +2062,8 @@ static const u8 sMonFrontAnimIdsTable[NUM_SPECIES - 1] =
     [SPECIES_STAKATAKA - 1] = 0x09,
     [SPECIES_BLACEPHALON - 1] = 0x8f,
     [SPECIES_ZERAORA - 1] = 0x17,
+    [SPECIES_MELTAN - 1] = 0x65,
+    [SPECIES_MELMETAL - 1] = 0x09,
 
     // Forms
     [SPECIES_ROTOM_HEAT - 1] = 0,
diff --git a/src/pokemon_icon.c b/src/pokemon_icon.c
index b51a78b13f..bb3f8b1763 100644
--- a/src/pokemon_icon.c
+++ b/src/pokemon_icon.c
@@ -843,6 +843,8 @@ const u8 *const gMonIconTable[] =
 	[SPECIES_STAKATAKA] = gMonIcon_Stakataka,
 	[SPECIES_BLACEPHALON] = gMonIcon_Blacephalon,
 	[SPECIES_ZERAORA] = gMonIcon_Zeraora,
+	[SPECIES_MELTAN] = gMonIcon_Meltan,
+	[SPECIES_MELMETAL] = gMonIcon_Melmetal,
     [SPECIES_EGG] = gMonIcon_Egg,
     [SPECIES_MEGA_VENUSAUR] = gMonIcon_MegaVenusaur,
     [SPECIES_MEGA_CHARIZARD_X] = gMonIcon_MegaCharizardX,
@@ -1762,6 +1764,8 @@ const u8 gMonIconPaletteIndices[] =
     [SPECIES_STAKATAKA] = 0,
     [SPECIES_BLACEPHALON] = 0,
     [SPECIES_ZERAORA] = 0,
+    [SPECIES_MELTAN] = 2,
+    [SPECIES_MELMETAL] = 2,
     [SPECIES_MEGA_VENUSAUR] = 1,
     [SPECIES_MEGA_CHARIZARD_X] = 0,
     [SPECIES_MEGA_CHARIZARD_Y] = 0,