Takes a little time to get used to, especially since my weak-ass laptop can only run it at about 5 fps, but overall it's flat-out amazing. The mouse-only controls work way better than I'd expected, too. I also like the decision to have RubiA get un-stunned based on distance rather than time.

It is a little counter-intuitive that RubiA can follow you into the hub zone IMO, and that she follows you into each new level rather than spawning anew each time; also, the camera seemed a little more awkward than usual during the titjob animation. Other than that, though, no complaints. : ]

EDIT: Also I noticed that when you start the game with level 6 unlocked and head straight in, RubiA has a tendency to shock herself with the blue zappies in level 5 and stay horny-stunned in there until you get close to her and then leave again.