Absolutely fun. I did a second playthrough and encountert various problems but I don't worry because you are now legally bound to make this game happen on steam :D Very fun!
I made my own vroom vroom and splotsch noises ^^
Don't eat the devs.
That's why I coded some cheats for myself that I disable after launch. Think about that in the future, that really helps a metric doodoo-ton. Also you responded: Now you really have to make this game and bring it to steam. I'll pay up to 10 bucks for it - Also: Demo! Good, now you're contracted, obligated, chained to the programmer chair and whatnot. As soon as you read: This. Congratulations! :D
But all the fun aside: This really has some potential! Quite a lot actually.
Maybe nibble the devs.