I really liked this game. Which makes the few things that I found annoying so irritating lol! Like i said, really fun game, especially the end, I though that transition was awesome. I can see a version of this game with the rail-bot having a ton of abilities.
Ok, so, the annoying things.
1. please please please make space a jump key as well
2. The wheel-bot felt a bit floaty. Maybe just an increase on the drag, some gravity adjustments when it comes down
3. The last level, maybe let the rail bot move slightly ahead of the wheel bot.
Great game, thanks for making it