It was a long time ago that I played this game (when I was around 7) so sorry if I can't recall the details or much of the information I'm about to give. Basically there's this 3rd person shooter for the OG Xbox that is very similar to Conker: live and reloaded or Fur Fighters but it's a bit more brighter and colorful. The characters were chibi-like and the gameplay was a team deathmatch and you could play in various maps; the couple I can remember were in a bathroom and the players were very small, another one was in like a circus but for this one I'm not very sure. Thanks for helping and I'm looking forward to the responses.