I think it would be a great idea to add sandbox mode. You would be able to edit the terrain and the map, and place any robot where ever, and that you should add a few more dangerous obstacles such as spikes, pits, etc. And a few more robots would be nice too. Like a Tank robot, that would have a shield, and it would have more health, and do more damage but it was slower, and a scout robot which would do less damage and have less health, but it would be fast. I think this is a great idea, and that I would be very happy to have it in the game.