Hmm.. Ich habs grad getestet und bei mir gings. Hast du vllt. irgendwelche patches verwendet?
EDIT:
Welches lv hast du zum testen bei der clean rom benutzt?
die deutschsprachige Seite übers SMW-Hacken
die deutschsprachige Seite übers SMW-Hacken
Bloß ich finds blöd, dass man am Anfang immer so weit hin und her rennen muss. Ich finde beim ersten Raum passt die Musik nicht dazu und mir gefällt die Pallette am Anfang nicht, aber das is ja Geschmackssache^^ 
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
;; Boomerang/Hammer Mario Power, by ICB. Based on Ice Power by mikeyk
;;
;; Description: This is a generator that allows Big Mario to shoot boomerangs and hammers
;; if their respective bits are set (Using the Boomerang and Hammer powerup sprites). This sprite
;; MUST be placed at the entrance to the level with the powerup, and also at each secondary entrance.
;;
;; Uses first extra bit: NO
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
HAMMER = $55 ;Sprite number of Hammer
BOOMERANG = $01 ;Sprite number of Boomerang
RAM_IsDucking = $73
RAM_OnYoshi = $187A
RAM_MarioXPos = $94
RAM_MarioXPosHi = $95
RAM_MarioYPos = $96
RAM_MarioYPosHi = $97
RAM_SpriteYHi = $14D4
RAM_SpriteXHi = $14E0
RAM_SpriteYLo = $D8
RAM_SpriteXLo = $E4
RAM_MarioDir = $76
RAM_SpriteDir = $157C
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
; sprite code JSL
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
dcb "INIT" ;generators don't have an init routine
dcb "MAIN"
PHB
PHK
PLB
LDA $19 ;\If Mario's powerup
CMP #$01 ;|is Big
BEQ GETPOWER ;|then continue
LDA #$00 ;|but if he gets hit or gets another powerup
STA $0DC6 ;/then reset the powerup RAM to Zero.
GETPOWER
JSR SPRITE_CODE_START
PLB
RTL
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
; main sprite code
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
EXTRA_BITS = $7FAB10
NEW_SPRITE_NUM = $7FAB9E
SPRITE_CODE_START
LDA $7F8820
CMP #$0D
BCC NoAdjust
LDA #$00 ; Initialize RAM the first time
STA $7F8820
NoAdjust:
BEQ CanShoot
DEC
STA $7F8820
BRA Return
CanShoot:
LDA $19 ; Only shoot if Big Mario
CMP #$01
BNE Return
LDA RAM_IsDucking
ORA RAM_OnYoshi
BNE Return
LDA $16 ;\If holding down
AND #$40 ;|the button
BEQ return ;|don't shoot more projectiles
BIT $15 ;|But if pressing once
BVC Return ;/fire one projectile
LDA $0DC6 ;\ If the bit is not set
CMP #$00 ;| for the powerups
BEQ RETURN ;/then do nothing.
LDA $0DC6 ;\If the first bit is set
CMP #$01 ;|for the powerup
BEQ HAMMER_GEN ;/Then generate hammers.
LDA $0DC6 ;\If the second bit is set
CMP #$02 ;|for the powerup
BEQ BOOM_GEN ;/then generate boomerangs.
RETURN
RTS
HAMMER_GEN
STZ $09
LDY #$0B
LOOP
LDA $14C8,y
BEQ NEXT
PHX
TYX
LDA $7FAB9E,x
PLX
CMP #HAMMER
BNE NEXT
INC $09
LDA $09
CMP #$02
BEQ NOFIRE
NEXT
DEY
BPL LOOP
LDA #$06 ;make fireball sound
STA $1DFC
JSL $02A9DE ; \ get an index to an unused sprite slot, return if all slots full
BMI RETURN2 ; / after: Y has index of sprite being generated
LDA #$0C
STA $7F8820
LDA #$01 ; \ set sprite status for new sprite
STA $14C8,y ; /
PHX ; \ before: X must have index of sprite being generated
TYX ; | routine clears *all* old sprite values...
LDA #HAMMER ; Store custom sprite number
STA NEW_SPRITE_NUM,x
JSL $07F7D2 ; | ...and loads in new values for the 6 main sprite tables
JSL $0187A7 ; get table values for custom sprite
LDA #$08
STA EXTRA_BITS,x
PLX
PHX
LDA #$3f
STA $13E0
LDA #$0f
STA $149C
TYX
LDA RAM_MarioXPos
STA RAM_SpriteXLo,x
LDA RAM_MarioXPosHi
STA RAM_SpriteXHi,x
LDA RAM_MarioYPos
CLC
ADC #$08
STA RAM_SpriteYLo,x
LDA RAM_MarioYPosHi
ADC #$00
STA RAM_SpriteYHi,x
LDA RAM_MarioDir
EOR #$01
STA RAM_SpriteDir,x
PLX
LDA #$4E ; \ set timer until change direction
STA $1540,y ; /
NOFIRE
RETURN2
RTS
BOOM_GEN
STZ $09
LDY #$0B
loop2
LDA $14C8,y
BEQ next2
PHX
TYX
LDA $7FAB9E,x
PLX
CMP #BOOMERANG
BNE next2
INC $09
LDA $09
CMP #$02
BEQ nofire2
next2
DEY
BPL loop2
LDA #$06 ;make fireball sound
STA $1DFC
JSL $02A9DE ; \ get an index to an unused sprite slot, return if all slots full
BMI RETURN3 ; / after: Y has index of sprite being generated
LDA #$0C
STA $7F8820
LDA #$01 ; \ set sprite status for new sprite
STA $14C8,y ; /
PHX ; \ before: X must have index of sprite being generated
TYX ; | routine clears *all* old sprite values...
LDA #BOOMERANG
STA NEW_SPRITE_NUM,x
JSL $07F7D2 ; | ...and loads in new values for the 6 main sprite tables
JSL $0187A7 ; get table values for custom sprite
LDA #$08
STA EXTRA_BITS,x
PLX
PHX
LDA #$3f
STA $13E0
LDA #$0f
STA $149C
TYX
LDA RAM_MarioXPos
STA RAM_SpriteXLo,x
LDA RAM_MarioXPosHi
STA RAM_SpriteXHi,x
LDA RAM_MarioYPos
CLC
ADC #$08
STA RAM_SpriteYLo,x
LDA RAM_MarioYPosHi
ADC #$00
STA RAM_SpriteYHi,x
LDA RAM_MarioDir
EOR #$01
STA RAM_SpriteDir,x
PLX
LDA #$4E ; \ set timer until change direction
STA $1540,y ; /
nofire2
RETURN3
RTS