Looking for an older fighting game (may have been either shockwave or flash). It had a sci-fi feel; you were on desert planet playing as blue humanoids fighting against robots. The fighting mechanics were similar to street fighter, but instead of 1 on 1 you fought a series of NPCs in each stage. It had 2 player co-op, and you could buy upgrades as you went.
I’d love to find it as it was one of the best fighting games I’ve ever played online