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.
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.
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.
These markers were meant to be used on the final game map. They were likely dropped in favor of the more impressive cyclist background.
The third, and thankfully last, "GOAL" graphic. This background graphic was replaced with a much larger sprite.
The last 3 seconds of the ending track are usually cut off by a jump to the high score screen.
There are a few section labels in the sound CPU:
|The Hang-On series|
|Sega Master System||Hang-On & Astro Warrior|
|Mac OS Classic||Super Hang-On|
|Game Gear||GP Rider|
|Sega Saturn||Hang-On GP|