Rooftop Run; Dog Pound, gear upgrades, etc...
 

I didnt see a thread that talked much about the gameplay, just that the game existed.

Anyway, I bought DogPound and he's definitely the best character on the game. I have a fully equipped Mikey and he's still not as strong.

So the first stage is the foot
Second stage is the flying bugs
Third stage is the Kraang
... and thats as far as I get

The end of the third stage has you battle a Kraang spaceship boss.

After you beat that it loops back to the beginning with Foot soldiers again.

Doesn't need its own thread.

Is dogpound the only unlockable character as of now?

Well you can only play as the turtle you start out with, and then you have to purchase the rest of them, but other than them, yes, Dogpound is the only unlockable character at the moment.