Star Wars: The Empire Strikes Back (NES)
|Star Wars: The Empire Strikes Back|
Also known as: Star Wars: Teikoku no Gyakushuu (JP)
The NES version of Star Wars: The Empire Strikes Back is a ridiculously difficult side-scroller based on the classic 1980 movie.
Press Left + Select simultaneously at the "A long time ago, in a galaxy far, far, away..." screen. Press Select to cycle between "musical sequences", "empire soundfx", and "digital sounds".
In the first level, head leftward through the caves until you reach a large textureless wall of ice. This wall can be destroyed in places with your blaster or lightsaber. Once through, climb all the way up until you reach a Force Power item. Collecting this item will trigger a brief credits sequence featuring pictures of the developers.
The US and European version have some code starting at 0x13E27, while the Japanese version has some different code starting at 0x13E1A. These fragments have been combined here for the sake of completeness.
H.2001 ;SETUP LEFT SIDE SCREEN BLANKING LDA #$FF STA SPEEDER.INT ;ACTIVATE SPLIT SCREEN MODE JSR SET.DO.UNBLANK JMP SPEEDER.SCENE RTS BEQ .10 ;- NO JMP .RESTART .10 LDY #0 JSR SET.CAPOS JSR MOVE.CAMERA LDA #0 STA XOFFSET+1 LDA #1 STA YOFFSET+1 LDX #0 JSR MOVE.OBJECT LDA OBJ.YPOSHI LDX OBJ.YPOSLO CMP #5 BNE .15 CPX #$A0 ;TIME FOR TILE SET SWITCH? BNE .15 ;- NO LDA CHANGE2 STA TILE.LIST LDA CHANGE2+1 STA TILE.LIST+1 LDA CHANGE2+2 STA SCREEN.LIST LDA CHANGE2+3 STA SCREEN.LIST+1 LDA CHANGE2+4 STA TILE.INFO LDA CHANGE2+5 STA TILE.INFO+1 JMP .LOOP2 .15 CMP #6 BCC .LOOP2 CPX #$30 ;TIME FOR COLOR PALETTE