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Hang-On (Arcade)

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Title Screen

Hang-On

Developer: Sega AM2
Publisher: Sega
Platform: Arcade (Sega Hang-On hardware)
Released in JP: July 5, 1985[1]
Released in US: August 1985[2]
Released in EU: 1985


DevTextIcon.png This game has hidden development-related text.
GraphicsIcon.png This game has unused graphics.
MusicIcon.png This game has unused music.


Hang-On is a motorcycle game notable for being the first "full body experience" game, featuring a rideable bike-shaped cabinet, as well as being one of the first 16-bit games with (pseudo) sprite scaling. So, you know. Pretty important developments.

Unused Graphics

Note: Gray backgrounds have been added for better visibility; they're not part of the graphics themselves.

You know what this is

The standard SEGA logo, likely used before the fancy sprite-based logo was put into the game.

Stop yelling at me!

An older version of the game's logo, found in pieces throughout the background graphics ROM. Again, this BG-based logo was replaced with a sprited one that showcases the game's pseudo-scaling features.

How very interezzzzzz bing bing bing
An older, simpler game map, with progress markers for every possible curve and straight section on the map.

No cactus, no problem

Location markers that would have been used on the old map. Notice that there are only four stage numbers and four pieces of scenery (besides the Start and Goal banners). It's possible that the desert stage wasn't part of the game when these markers were drawn.

World's fastest race

These markers were meant to be used on the final game map. They were likely dropped in favor of the more impressive cyclist background.

Old Final
OH NO! OLD GOAL!? Still not big enough!

The third, and thankfully last, "GOAL" graphic. This background graphic was replaced with a much larger sprite.

(Source: Original TCRF research)

Unused Music

The last 3 seconds of the ending track are usually cut off by a jump to the high score screen.

(Source: Original TCRF research)

Development Text

There are a few section labels in the sound CPU:

Address Name Address Name Address Name
28E8
MOTOR       
2D70
EFECTOR     
30E3
CAM SPD     
298B
SELL        
2F26
EXOST GAIN  
3127
CHAMBER GAIN
2A83
RUN         
2F98
EXOST CYC   
3193
CHAMBER CYC 
2AF4
CALCYC      
3017
CAM GAIN    
3237
EXENOISE    
2BE4
CALSPD      
3096
CAM CYC     
32CF
DEBUGING    
(Source: Original TCRF research)

References