As others have said in the post, we could easily distinguish teams via armor etc. We could even go as far as team skins if people want to. EDIT: I've noticed a few custom skin makers here on EMC, I'll happily donate some rupees for them to create some team skins for the spleef contests. Using the model I suggested you can easily adapt it using teams of 2+, I merely used 1v1 as an example. Team games would just work like player A+B vs player C+D. Using 2v2 as an example. There are lots of different "games" we could use. A last man standing type spleef where everyone goes against each other at once and the last man alive wins. 2v2, 3v3, 4v4 etc. A staggered game where it starts with two players and every so often someone else joins. The possibilities are endless.