So-so, Meh, Ehhhhhhhh...
I played maybe 5 characters to full (not entirely sure how to describe progression in this game) before I decided I knew what this game was. Sure, it's more challenging then your standard dress-up, but that doesn't mean it isn't just a prettier one. The first level plays out exactly the same as the last one, with you hunting down shiny objects. After awhile I realized that trying to absorb specific pieces before grabbing them was pointless, so I ended up just hammering the space bar anytime I got near anything purple, or orange, or grey. But multiple robots are grey, which complicated things immensely for me, and wasted my time.
Other then the fact that the inertia controls horribly, the fact that that there is only one level that repeats to infinite, and the fact that there is only one way to win, i.e. completing a set, there is NO room in the design for the most fun part of it all. The part where you go, "screw it!" and you create the most badass robot ever. This is not only not in the game itself, it is DISCOURAGED by the time limit. Not good.
All in all, a game that isn't worth more then 20 minutes of your time, unless you care about 5 point medals THAT MUCH.