Your friends want you to build giant robots and set them on your other friends. Weld together 30-story-tall beasts. Give them shielding, lasers, plasma cannons, and particle beans. Beams. Whatever. Imbue your creations with motion, and then create arenas to house them. Click here to learn more.
It would be nice if we could tweak the score of the robots to make them more or less worth, that way we could do maps with robots where it's more or less viable to spend time killing them vs avoiding them while doing another objective. The same could be said for timer score.