You customize your robot with eight parts (head, core, shoulder, hip, arms and legs). Each of the parts can have additional stats or have an active ability, up to four abilities, which means you can create your own combos. You gain these by destroying enemy robots and picking up their parts.
The bosses are played in Smash-like 1v1s where you can beat them up or knock them off the map. The bosses can be as powerful as you. The game features a fun tournament mode where you can participate in a series of boss fights.
Actually, the game is very interesting for the first couple of levels because you discover many parts that have different moves. I had a lot of fun. But as you progress further, you start getting parts that have the same attributes as the ones you already have, but either as a different part type or with a different model. After about half-way through, the level platforming becomes frustrating (one level can have you bouncing around damaging floors), and the enemies get too meaty for your combos, usually this would be alright but the way enemies fly off after a combo and not die is very irritating, especially if they go into dangerous areas and you want their parts.
Tournament mode is still fun, however. The bosses can be challenging.
The game also has multiplayer, so it could be possibly be better with friends.
Overall: 7/10, it's good for a few hours. Get it only while it's cheap!