You have 60 seconds to break the barrier! Mash the Space bar to damage it. You'll need to get some help, though. when you have enough points, an upgrade's respective button will be available! Click on it and you get the upgrade.
The barrier music is from Kirby & The Amazing Mirror, the menu music is from Art Of Balance, and the sandbox music is from Sonic Unleashed. (also this entire game was inspired by Stickman Blast 2) Sandbox mode is kind of the easy mode why did I just put "Sandbox mode is !"