This idea just popped into my head a few minutes ago, so I haven't thought about this a lot.
A zero G mode in a boxed arena would be pretty cool. When you jump, you just don't land back. When you come close to any of the six surfaces, your robot automatically adjusts to be perpendicular to that surface and you land there. (Might need to implement some air thrusters like real spacecrafts have for micro adjustments in flight)
Dunno, seemed pretty awesome to be in a zero G environment with arrows coming at you from literally all directions and you have to jump surface to surface. The game mentioned going to human outposts to eradicate them, maybe they had a bit of fighting fun on the ship while traveling.