Robocraft is MechWarrior mashed up with the gummi ships from Kingdom Hearts and I LOVE IT.
A thing you can do in it:
Each robot is put into a different competitive tier based on how advanced it is. BUT, what you can do is take an upper class gun, stick on some wheels and NOTHING else, and completely dominate in lower matchmaking tiers. Not that I do that, of course. (I haven’t unlocked the plasma cannons yet)