diff --git a/README.md b/README.md
index abcb542..c31f6cc 100644
--- a/README.md
+++ b/README.md
@@ -53,6 +53,20 @@ In general, there have been many wild encounter tweaks. View this document for d
 - The Kanto Safari Zone map from the prototype has been restored.
 - The prototype Lake of Rage village has been restored, complete with an Evolution Stone shop and Trader NPC! In general, it's themed around Pokemon evolution.
 - The Pokemon Communications Centre from JP GSC has been added and tweaked into a Regional Variant Trade hub, increasing with badge count.
+- Breakable rocks now give useful items...
+	db 1, MAX_REVIVE
+	db 2, DOME_FOSSIL
+	db 2, HELIX_FOSSIL
+	db 2, WING_FOSSIL
+	db 2, OLD_AMBER
+	db 2, CLUB_FOSSIL
+	db 4, STAR_PIECE
+	db 10, BIG_PEARL
+	db 18, ETHER
+	db 24, HARD_STONE
+	db 24, SOFT_SAND
+	db 48, PEARL
+	db 64, BRICK_PIECE
 
 ## Item Changes
 - Many evolution stones have been added to accomodate the Pokemon featured here, including the Heart and Poison Stones from the SpaceWorld demo!
diff --git a/constants/item_constants.asm b/constants/item_constants.asm
index fa5bd7f..8d697cf 100644
--- a/constants/item_constants.asm
+++ b/constants/item_constants.asm
@@ -153,7 +153,7 @@
 	const BLK_AUGURITE ; 91
 	const LEFTOVERS    ; 92
 	const PEAT_BLOCK   ; 93
-	const ITEM_94      ; 94
+	const CLUB_FOSSIL  ; 94, was ITEM_94
 	const ITEM_95      ; 95
 	const MYSTERYBERRY ; 96
 	const DRAGON_SCALE ; 97
diff --git a/data/items/attributes.asm b/data/items/attributes.asm
index a1e96ed..6f81249 100644
--- a/data/items/attributes.asm
+++ b/data/items/attributes.asm
@@ -302,8 +302,8 @@ ItemAttributes:
 	item_attribute 200, HELD_LEFTOVERS, 10, CANT_SELECT, ITEM, ITEMMENU_NOUSE, ITEMMENU_NOUSE
 ; PEAT_BLOCK
 	item_attribute 2100, HELD_NONE, 0, CANT_SELECT, ITEM, ITEMMENU_PARTY, ITEMMENU_NOUSE
-; ITEM_94
-	item_attribute $9999, HELD_NONE, 0, NO_LIMITS, ITEM, ITEMMENU_NOUSE, ITEMMENU_NOUSE
+; CLUB_FOSSIL
+	item_attribute 0, HELD_NONE, 0, CANT_SELECT | CANT_TOSS, KEY_ITEM, ITEMMENU_NOUSE, ITEMMENU_NOUSE
 ; ITEM_95
 	item_attribute $9999, HELD_NONE, 0, NO_LIMITS, ITEM, ITEMMENU_NOUSE, ITEMMENU_NOUSE
 ; MYSTERYBERRY
diff --git a/data/items/descriptions.asm b/data/items/descriptions.asm
index 8c03685..5fdcfba 100644
--- a/data/items/descriptions.asm
+++ b/data/items/descriptions.asm
@@ -148,7 +148,7 @@ ItemDescriptions:
 	dw BlkAuguriteDesc
 	dw LeftoversDesc
 	dw PeatBlockDesc
-	dw QuestionMarkDesc
+	dw ClubFossilDesc
 	dw QuestionMarkDesc
 	dw MysteryBerryDesc
 	dw DragonScaleDesc
@@ -967,3 +967,7 @@ BlkAuguriteDesc:
 PeatBlockDesc:
 	db   "Evolves certain"
 	next "kinds of #MON.@"
+
+ClubFossilDesc:
+	db   "The club of an"
+	next "ancient #MON.@"
diff --git a/data/items/names.asm b/data/items/names.asm
index a3914cf..3b32796 100644
--- a/data/items/names.asm
+++ b/data/items/names.asm
@@ -147,7 +147,7 @@ ItemNames::
 	li "BLK AUGURITE"
 	li "LEFTOVERS"
 	li "PEAT BLOCK"
-	li "TERU-SAMA"
+	li "CLUB FOSSIL"
 	li "TERU-SAMA"
 	li "MYSTERYBERRY"
 	li "DRAGON SCALE"
diff --git a/engine/events/checkforhiddenitems.asm b/engine/events/checkforhiddenitems.asm
index 4eafef5..4b4ee4e 100644
--- a/engine/events/checkforhiddenitems.asm
+++ b/engine/events/checkforhiddenitems.asm
@@ -81,3 +81,39 @@ CheckForHiddenItems:
 	call GetFarByte
 	inc hl
 	ret
+
+; from https://github.com/pret/pokecrystal/wiki/Smashing-rocks-has-a-chance-to-contain-items
+RockItemEncounter:
+	ld hl, .RockItems
+	call Random
+.loop
+	sub [hl]
+	jr c, .ok
+	inc hl
+	inc hl
+	jr .loop
+
+.ok
+	ld a, [hli]
+	inc a
+	jr z, .done
+	ld a, [hli]
+.done
+	ld [wScriptVar], a
+	ret
+	
+.RockItems:
+	db 1, MAX_REVIVE
+	db 2, DOME_FOSSIL
+	db 2, HELIX_FOSSIL
+	db 2, WING_FOSSIL
+	db 2, OLD_AMBER
+	db 2, CLUB_FOSSIL
+	db 4, STAR_PIECE
+	db 10, BIG_PEARL
+	db 18, ETHER
+	db 24, HARD_STONE
+	db 24, SOFT_SAND
+	db 48, PEARL
+	db 64, BRICK_PIECE
+	db -1
diff --git a/engine/events/overworld.asm b/engine/events/overworld.asm
index 42bbe60..199e280 100644
--- a/engine/events/overworld.asm
+++ b/engine/events/overworld.asm
@@ -1374,11 +1374,19 @@ RockSmashScript:
 
 	callasm RockMonEncounter
 	readmem wTempWildMonSpecies
-	iffalse .done
+	iffalse .no_battle
 	randomwildmon
 	startbattle
 	reloadmapafterbattle
-.done
+	end
+; from https://github.com/pret/pokecrystal/wiki/Smashing-rocks-has-a-chance-to-contain-items
+.no_battle
+	callasm RockItemEncounter
+	iffalse .no_item
+	opentext
+	verbosegiveitem ITEM_FROM_MEM
+	closetext
+.no_item
 	end
 
 MovementData_RockSmash:
diff --git a/engine/items/item_effects.asm b/engine/items/item_effects.asm
index 1e5f35c..2d9d076 100644
--- a/engine/items/item_effects.asm
+++ b/engine/items/item_effects.asm
@@ -161,7 +161,7 @@ ItemEffects:
 	dw EvoStoneEffect      ; BLK_AUGURITE
 	dw NoEffect            ; LEFTOVERS
 	dw EvoStoneEffect      ; PEAT_BLOCK
-	dw NoEffect            ; ITEM_94
+	dw NoEffect            ; CLUB_FOSSIL, was ITEM_94
 	dw NoEffect            ; ITEM_95
 	dw RestorePPEffect     ; MYSTERYBERRY
 	dw NoEffect            ; DRAGON_SCALE
@@ -203,10 +203,10 @@ ItemEffects:
 	dw NoEffect			   ; BLUESKY_MAIL
 	dw NoEffect			   ; MUSIC_MAIL
 	dw NoEffect			   ; MIRAGE_MAIL
-	dw NoEffect			   ; ITEM_BE
-	dw NoEffect			   ; ITEM_DC
-	dw NoEffect			   ; ITEM_C3
-	dw NoEffect			   ; ITEM_FA
+	dw NoEffect			   ; OLD_AMBER
+	dw NoEffect			   ; DOME_FOSSIL
+	dw NoEffect			   ; HELIX_FOSSIL
+	dw NoEffect			   ; WING_FOSSIL
 	assert_table_length NUM_ITEMS
 ; The items past ITEM_B3 do not have effect entries:
 ; They all have the ITEMMENU_NOUSE attribute so they can't be used anyway.
diff --git a/maps/DebugRoom.asm b/maps/DebugRoom.asm
index 600ed22..7813663 100644
--- a/maps/DebugRoom.asm
+++ b/maps/DebugRoom.asm
@@ -19,12 +19,12 @@ DebugPokemon1Script:
 
 DebugPokemon2Script:
 	opentext
-	getmonname STRING_BUFFER_3, WALKING_WAKE
+	getmonname STRING_BUFFER_3, MACHAMP
 	writetext ReceivedDebugPokemonText
 	playsound SFX_CAUGHT_MON
 	waitsfx
 	promptbutton
-	givepoke QWILFISH, 31, THUNDERSTONE
+	givepoke MACHAMP, 31, TM_ROCK_SMASH
 	closetext
 	end