Beat it... loved it! There's tons of enemies, and a LOT of them drop green health pick-ups. There's also flying item carriers that drop extra lives, and if you collect 50 coins, you'll get an extra life as well. I ended up beating the game with 13 lives...
My only complaints are that it's a bit short, and there's no exploration. I would have LOVED to see some hidden areas behind walls (kind of like in Meganoid and Stardash) - because they would have fit in this game PERFECTLY. But aside from that, the character designs are crazy good, the graphics are great, and the action is awesome. The physics are nice, and the controls work extremely well.
VERY surprising that it's a GameSalad game. I wasn't even sure that it was until I asked the developer... =oO
But yeah... totally recommend it for platformer fans.