The concept is pretty awesome. Very good idea! The execution was fine too.
In my opinion the levels often were overloaded with unneccessary information. And once you were able to break them down to what really matters, some solutions wereway too obvious, even in late game levels. Though, I guess that's just the nature of letting three robots run simultaneously.
An extreme example for that is Bonus Three. Once you see how extremely limited the left robot is, you can nearly entirely focus on just that. There is only one possible path for that robot without running in any magnets and therefore it must be the correct path for the other robots too.
There were very well designed levels too whatsoever, with some cool little twists.
Graphics and Music were also decent. I especially liked the musics tone change, when running your commands.
Overall a very strong entry.