diff --git a/BuGS.xcodeproj/project.pbxproj b/BuGS.xcodeproj/project.pbxproj
index aaae76b..fe910f2 100644
--- a/BuGS.xcodeproj/project.pbxproj
+++ b/BuGS.xcodeproj/project.pbxproj
@@ -78,6 +78,7 @@
 		9D3396FF24AED09D003222B3 /* sprites.md */ = {isa = PBXFileReference; lastKnownFileType = net.daringfireball.markdown; path = sprites.md; sourceTree = "<group>"; };
 		9D33970024AEFBF2003222B3 /* segments.s */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.asm; path = segments.s; sourceTree = "<group>"; };
 		9D33970124AF9D55003222B3 /* sprites.macros */ = {isa = PBXFileReference; lastKnownFileType = text; path = sprites.macros; sourceTree = "<group>"; };
+		9D47CBE02547BEDB00CDA5CB /* gameMushroom.s */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.asm; path = gameMushroom.s; sourceTree = "<group>"; };
 		9D62AF3B249871A300348F45 /* colour.s */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.asm; path = colour.s; sourceTree = "<group>"; };
 		9D62AF3F2499CD1E00348F45 /* LICENSE */ = {isa = PBXFileReference; lastKnownFileType = text; path = LICENSE; sourceTree = "<group>"; };
 		9D62AF402499CD3A00348F45 /* README.md */ = {isa = PBXFileReference; lastKnownFileType = net.daringfireball.markdown; path = README.md; sourceTree = "<group>"; };
@@ -141,6 +142,7 @@
 				9DB1505124C6875C00558B87 /* gameScorpion.s */,
 				9DB1505324C9E54C00558B87 /* gameSpider.s */,
 				9DB1505424D3BF6C00558B87 /* gameSegments.s */,
+				9D47CBE02547BEDB00CDA5CB /* gameMushroom.s */,
 				9D8AF0B72535542400C10E3C /* level.s */,
 				9D8AF0B82535543000C10E3C /* score.s */,
 				9D62AF3B249871A300348F45 /* colour.s */,
diff --git a/BuGS/game.s b/BuGS/game.s
index 22882d0..06e0338 100644
--- a/BuGS/game.s
+++ b/BuGS/game.s
@@ -242,7 +242,12 @@ checkKey_loop2 anop
         beq checkKey_shootSpider
         cmp #'P'
         beq checkKey_shootSpider
-        
+		
+		cmp #'m'
+		beq checkKey_shootMushroom
+		cmp #'M'
+		beq checkKey_shootMushroom
+		
         cmp #'+'
         beq checkKey_scoreAdd
 
@@ -269,6 +274,9 @@ checkKey_shootSpider anop
 checkKey_shootCentipede anop
 		jmp shootRandomSegment
 		
+checkKey_shootMushroom anop
+		jmp shootRandomMushroom
+		
 checkKey_scoreAdd anop
 		jmp scoreAddTwentyThousand
                 
diff --git a/BuGS/gameMushroom.s b/BuGS/gameMushroom.s
new file mode 100644
index 0000000..bacd0e4
--- /dev/null
+++ b/BuGS/gameMushroom.s
@@ -0,0 +1,70 @@
+;
+;  gameMushroom.s
+;  BuGS
+;
+;  Created by Jeremy Rand on 2020-10-26.
+;Copyright © 2020 Jeremy Rand. All rights reserved.
+;
+
+		case on
+        mcopy gameMushroom.macros
+        keep gameMushroom
+
+gameMushroom start
+        using globalData
+		
+; Call this with the tile offset of the mushroom being shot in the X register
+shootMushroom entry
+		ldy tileType,x
+		beq shootMushroom_done
+		lda #TILE_STATE_DIRTY
+		sta tileDirty,x
+		cpy #TILE_POISON_MUSHROOM1
+		bge shootMushroom_poisoned
+		tya
+		sec
+		sbc #4
+		sta tileType,x
+		bne shootMushroom_done
+		jmp scoreAddOne
+		
+shootMushroom_poisoned anop
+		bne shootMushroom_poisonedNoScore
+		lda #TILE_EMPTY
+		sta tileType,x
+		jmp scoreAddOne
+		
+shootMushroom_poisonedNoScore anop
+		tya
+		sec
+		sbc #4
+		sta tileType,x
+		
+shootMushroom_done anop
+		rtl
+		
+		
+shootRandomMushroom entry
+		lda prevRandomMushroom
+		cmp #RHS_FIRST_TILE_OFFSET
+		bge shootRandomMushroom_doRandom
+		tax
+		bra shootRandomMushroom_testTile
+		
+shootRandomMushroom_doRandom anop
+		jsl rand0_to_65534
+		and #1023
+		cmp #24*25
+		bge shootRandomMushroom_doRandom
+		asl a
+		tax
+shootRandomMushroom_testTile anop
+		lda tileType,x
+		beq shootRandomMushroom_doRandom
+		stx prevRandomMushroom
+		jmp shootMushroom
+		
+		
+prevRandomMushroom dc i2'RHS_FIRST_TILE_OFFSET'
+
+		end
diff --git a/BuGS/globals.s b/BuGS/globals.s
index ebaddb2..1a78156 100644
--- a/BuGS/globals.s
+++ b/BuGS/globals.s
@@ -11,8 +11,7 @@
         keep globals
 
 globals start
-        rtl
-        end
+		end
 
 globalData data