It's a really good game, but once you get the boompipe, The game is over. period. not even the biggest, baddest of the monsters could stand a single shot from it. If you can get the upgrades, It changes from unfair to godmoding.
Umm, I ran across a glitch in your game. I fell in the hole into the core, was about to be destroyed, i poured every snowball i had into there, and managed to shoot out of the core, through the crust and back to the surface. do you know what happened?
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 "Haunt the House"){kind=icon}
 "Deep Diver"){kind=icon}
 "Balloon in a Wasteland"){kind=icon}
 "CellCraft"){kind=icon}
 "VVVVVV Demo"){kind=icon}
 "MegaDrill"){kind=icon}
 "run.don't.stop"){kind=icon}