This is essentially just an expansion of the minigame from Planet Robobot. The gameplay is exactly the same as the minigame, but with new levels and boss fights added. The game also challenges you to get a gold ranking on every level to unlock harder versions of those levels and a "secret path", which I decided not to do, but certainly adds a lot of challenge and extends the playtime if that's what you desire. If you liked the minigame in Planet Robobot, I'd say this is well worth the price.