diff --git a/constants/pokedex_constants.asm b/constants/pokedex_constants.asm
index 1be14e2d..7c221ae5 100644
--- a/constants/pokedex_constants.asm
+++ b/constants/pokedex_constants.asm
@@ -148,6 +148,7 @@
 	const DEX_WEEZING    ; 110
 	const DEX_RHYHORN    ; 111
 	const DEX_RHYDON     ; 112
+	const DEX_RHYPERIOR
 	const DEX_CHANSEY    ; 113
 	const DEX_MONJA
 	const DEX_TANGELA    ; 114 
diff --git a/data/pokemon/base_stats.asm b/data/pokemon/base_stats.asm
index 9cdcf2d5..41df0a27 100644
--- a/data/pokemon/base_stats.asm
+++ b/data/pokemon/base_stats.asm
@@ -144,6 +144,7 @@ INCLUDE "data/pokemon/base_stats/koffing.asm"
 INCLUDE "data/pokemon/base_stats/weezing.asm"
 INCLUDE "data/pokemon/base_stats/rhyhorn.asm"
 INCLUDE "data/pokemon/base_stats/rhydon.asm"
+INCLUDE "data/pokemon/base_stats/rhyperior.asm"
 INCLUDE "data/pokemon/base_stats/chansey.asm"
 INCLUDE "data/pokemon/base_stats/monja.asm"
 INCLUDE "data/pokemon/base_stats/tangela.asm"
diff --git a/data/pokemon/base_stats/rhyperior.asm b/data/pokemon/base_stats/rhyperior.asm
index ecaaff01..cb5544ca 100644
--- a/data/pokemon/base_stats/rhyperior.asm
+++ b/data/pokemon/base_stats/rhyperior.asm
@@ -1,14 +1,14 @@
-	db DEX_RHYDON ; pokedex id
+	db DEX_RHYPERIOR ; pokedex id
 
 	db 115, 140, 130,  50,  55
 	;   hp  atk  def  spd  spc
 
 	db GROUND, ROCK ; type
-	db 60 ; catch rate
-	db 204 ; base exp
+	db 30 ; catch rate
+	db 217 ; base exp
 
-	INCBIN "gfx/pokemon/front/rhydon.pic", 0, 1 ; sprite dimensions
-	dw RhydonPicFront, RhydonPicBack
+	INCBIN "gfx/pokemon/front/rhyperior.pic", 0, 1 ; sprite dimensions
+	dw RhyperiorPicFront, RhyperiorPicBack
 
 	db HORN_ATTACK, STOMP, TAIL_WHIP, FURY_ATTACK ; level 1 learnset
 	db GROWTH_SLOW ; growth rate
@@ -23,5 +23,5 @@
 	     SURF,         STRENGTH
 	; end
 
-	db BANK(RhydonPicFront)
-	assert BANK(RhydonPicFront) == BANK(RhydonPicBack)
+	db BANK(RhyperiorPicFront)
+	assert BANK(RhyperiorPicFront) == BANK(RhyperiorPicBack)
diff --git a/data/pokemon/evos_moves.asm b/data/pokemon/evos_moves.asm
index 7ac775c4..c5de78dd 100644
--- a/data/pokemon/evos_moves.asm
+++ b/data/pokemon/evos_moves.asm
@@ -212,7 +212,8 @@ EvosMovesPointerTable:
 
 RhydonEvosMoves:
 ; Evolutions
-	db EV_TRADE, 1, RHYPERIOR
+	db EV_ITEM, MOON_STONE, 1, RHYPERIOR	; Protector isn't added yet  ~M
+	db 0
 ; Learnset
 	db 30, STOMP
 	db 35, TAIL_WHIP
diff --git a/data/pokemon/menu_icons.asm b/data/pokemon/menu_icons.asm
index 42234b17..055cce3c 100644
--- a/data/pokemon/menu_icons.asm
+++ b/data/pokemon/menu_icons.asm
@@ -144,6 +144,7 @@ MonPartyData:
 	nybble ICON_MON       ; Weezing
 	nybble ICON_QUADRUPED ; Rhyhorn
 	nybble ICON_MON       ; Rhydon
+	nybble ICON_MON       ; Rhyperior
 	nybble ICON_FAIRY     ; Chansey
 	nybble ICON_GRASS     ; Monja
 	nybble ICON_GRASS     ; Tangela
diff --git a/data/pokemon/palettes.asm b/data/pokemon/palettes.asm
index 42b3de3d..20805d55 100644
--- a/data/pokemon/palettes.asm
+++ b/data/pokemon/palettes.asm
@@ -145,6 +145,7 @@ MonsterPalettes:
 	db PAL_PURPLEMON ; WEEZING
 	db PAL_GREYMON   ; RHYHORN
 	db PAL_GREYMON   ; RHYDON
+	db PAL_BROWNMON  ; RHYPERIOR
 	db PAL_PINKMON   ; CHANSEY
 	db PAL_BLUEMON   ; MONJA
 	db PAL_BLUEMON   ; TANGELA
diff --git a/engine/debug/debug_party.asm b/engine/debug/debug_party.asm
index 36eb8e6f..03455ef1 100644
--- a/engine/debug/debug_party.asm
+++ b/engine/debug/debug_party.asm
@@ -129,7 +129,7 @@ IF DEF(_DEBUG)
 	ret
 
 DebugSetPokedexEntries:
-	ld b, wPokedexOwnedEnd - wPokedexOwned - 1
+	ld b, wPokedexOwnedEnd - wPokedexOwned
 	ld a, %11111111
 .loop
 	ld [hli], a
diff --git a/gfx/pics.asm b/gfx/pics.asm
index 27d17754..7166e078 100644
--- a/gfx/pics.asm
+++ b/gfx/pics.asm
@@ -467,6 +467,8 @@ BellossomPicFront::    INCBIN "gfx/pokemon/front/bellossom.pic"
 BellossomPicBack::     INCBIN "gfx/pokemon/back/bellossomb.pic"
 ScizorPicFront::       INCBIN "gfx/pokemon/front/scizor.pic"
 ScizorPicBack::        INCBIN "gfx/pokemon/back/scizorb.pic"
+RhyperiorPicFront::    INCBIN "gfx/pokemon/front/rhyperior.pic"
+RhyperiorPicBack::     INCBIN "gfx/pokemon/back/rhyperiorb.pic"
 
 FossilKabutopsPic::   INCBIN "gfx/pokemon/front/fossilkabutops.pic"
 FossilAerodactylPic:: INCBIN "gfx/pokemon/front/fossilaerodactyl.pic"
diff --git a/gfx/pokemon/back/rhyperiorb.png b/gfx/pokemon/back/rhyperiorb.png
new file mode 100644
index 00000000..8b4f49c7
Binary files /dev/null and b/gfx/pokemon/back/rhyperiorb.png differ
diff --git a/gfx/pokemon/front/rhyperior.png b/gfx/pokemon/front/rhyperior.png
new file mode 100644
index 00000000..c92f21d2
Binary files /dev/null and b/gfx/pokemon/front/rhyperior.png differ