It's a very old game like around 1990-2000ish(PC), it's sort of an fps/third-person can't really remember. I only had the demo for it and you started off with a basic weapon. It was not a violent game and you only shot your opponents with balls. I think the color was yellow. You could pick different levels and pick up weapons and ammo. I can only remember one where you shot discs. It was also very arcady, and you could take elevators and get power-ups to jump up high. I think it was AI only but I'm not really sure. Again it was not very violent and I think the opponents only respawned.