Yea, there is a way to loose it. Once Mario gets hit by an enemy he will loose it and return back to normal.
EDIT: New video.
EDIT: Video removed because of dead link.
EDIT: New video.

EDIT: Video removed because of dead link.
Ice Man's Profile → Posts
HORIZ_DISP dcb $00,$00,$00,$00,$00,$10 dcb $00,$00,$00,$00,$10,$00 VERT_DISP dcb $F0,$00,$F0,$00,$00,$00 TILEMAP dcb $80,$A0,$82,$A2,$AC,$AE
HORIZ_DISP dcb $00,$00,$00,$00,$00,$00 dcb $00,$00,$00,$00,$00,$00 VERT_DISP dcb $F0,$00,$F0,$00,$F0,$00 TILEMAP dcb $80,$A0,$82,$A2,$AC,$AE
LDA #$02 STA $420B
lorom header macro RATS_start(id) db "STAR" dw RATS_Endcode<id>-RATS_Startcode<id> dw RATS_Endcode<id>-RATS_Startcode<id>^#$FFFF RATS_Startcode<id>: endmacro macro RATS_end(id) RATS_Endcode<id>: endmacro org $8A0B JSL CodeStart NOP org $Address %RATS_start(0) CodeStart: *insert code* %RATS_end(0)
!song = *insert number here* LDA #!song STA $1DFB RTS
LDY #$10 ;act like tile 11F (Flower/Mushroom block) LDA #$1F STA $1693
LDY #$F0 ;act like tile 11F (Flower/Mushroom block) LDA #$11 STA $1693