Train

Health system, Enemy variants, Upgrades, and basically the exact same thing as the guy below me.

this has the potential to be an extremely fun game. but I have some tips to do so, if there was a sort of challenge to the game like hazards ont he track you have to defeat, or upgrades so you could do more things that would make the game exponentially more fun in my opinion. also if there were waves/levels to the game and crossroads in the tracks so you could go other places such as other zones I think this game would easily become a very popular game and have a lot more plays.