40 level campaign (5 stages)
UNLOCKABLE challenge tower (50/100 extra levels)
Training
Multiplayer CO-OP missions (more levels unlocked)
Multiplayer Versus (more levels unlocked)
Two Minigames (One must be unlocked, another game mode for the first game must also be unlocked)
That's about it.
I've decided to put SpiderheadII on hold for a whole, and focus on making this a quick game; or creating Frayed Air as a whole.
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