A game about mechs and battling

Hy there, I'm looking for a fighting game for the PS2 about robots piloted by humans, the whole thing had rich pixel graphics with a anime like stile.

I don't remember any of the dialogues, but i remember there were some in the blue text boxes before fights in the main campaign. I also remember some of the robots, there was a green one on treadmill's with the upper body resembling something Military, a white humanoid that shoots a laser beam from it's belly and a terracotta/brown one that was sturdier and shorter than the rest and it's design resembled somehow the eggmans giant robot.

Hope y'all find something, thanks