its basicly a puzzle adventure. you are Bumblebee Prime and Bulkhead, each having different abilities and you have to switch between bots to work your way through each area Bumblebee has a megaman x wall jump and his stingers Prime has his axe and grappler cant jump Bulkhead has wrecking ball and can push blocks cant jump a small example of gameplay: you switch between characters as needed, jump up a wall and use Bumblebees stingers to deactivate a lock so Prime can get through a now unlocked door, then use Prime to grapple up a steel girder to smash a switch with his axe so Bulkhead can go through another door and smash through a wall. then use Bumblebee to activate a magnetic crane to move a block that Bulkhead can push onto a pressure plate that activates a elevator. then move Bulkhead and Prime to said elevator so they can catch up with Bumblebee and finish the level. each level is pretty much a combination of puzzles like this. as for enemies each level is filled with stupid drones not even huminoid. you get 3 lives (charges from Sari's key which revives you). Energon Cubes are randomly located around each level to restore health. certain 3rd person driving missions let you race through the city and as prowl transform and toss ninja stars at either drones or lockdown in car mode who never transforms. another racing mission allows you to race through the city as BB with his boosters the only boss is Megatron who you have to fight twice. with the combination of puzzle teamwork. unlockables are just the stock transformation sequences i liked it but wouldve liked it better as a $20 game rather than a $30 the voice actors made the game for me.