Great game, the running sub-genre is a great one as long as you can upgrade so it has a cool RPG kinda quality. Great way to burn 20+ minutes getting 20 easy but fun points.
I only had 105 continues on Insane and got the badge. The game doesn't take long because the levels are so short. The dolphin/pillar level can be impossible though because the pillars can create a wall with no gap. Most of the game is luck in that respect. Great game though