Goo Saga

I have to give Goo Saga a solid recommendation, ironically enough. I have my qualms with the upgrade system, but the core game here is more than strong enough to recommend on its own. And the progression issues may not matter as much if you are particularly skilled, or if completionism is not a factor for you at all. But if you want a platformer with a fun premise and great production values, do check out Goo Saga.