Nice game, here are some things if you wanna work on
1) The robot speed can be decresead so ppl know what they are lookin at.
2) Give robot some animation, like when he bumps on a wall he should shake his head or you can use rigid body to make robot.
3)Use some other sound at level finish, bcuz it seems like you lose but it displays you won
4)Work on main menu
Well that all what i think. Although this is an early access hope you Upgrade soon