This is fun! But I feel it needs some onboarding/tutorial. Half the time I didn't understand why I can't take some money off the ground. Sometimes it said that I'm blocked because I need to first collect more money, but other times I didn't get any message and it seemed just random. Also, it seemed a bit random who was considered rammed and who was concidered the rammer. I think the concept has lots of potential, just needs some polish.