AppAdvice: This game is similar to those in that it progresses vertically, but instead of climbing, jumping, or flying, you’ll be swimming downstream avoiding obstacles and gobbling up fish for boosts. It shares quite a few similarities with Chasing Yello, a vertical swimmer released last week.
Touch Arcade: We've all likely played our fair share of endless runners by now, or endless diver I guess in this case, but have you played one where you play as a penguin strapped to a rocket? Chances are you haven't, and Captain Antarctica [$0.99 / $1.99 (HD)] is that game you haven't yet played, and you probably should.
STP: Let’s just say the Avengers are probably not going to be knocking any time soon.
AppSpy: Captain Antarctica is an up-beat casual title that plays with common 'endless' concepts and gives it a level-based treatment instead; while not as addictive, you'll come back for more just to hear it's catchy tune again.