Get the multiplier to x10 in Single Player.
Complete Level 1 on any difficulty.
Complete World 1 on any difficulty.
Complete World 2 on any difficulty.
Complete World 3 on any difficulty.
Complete World 4 on any difficulty.
Get a Beastie Combo by shooting a certain amount of only 1 type of beastie.
Get the multiplier to x2 in Single Player.
Both players get a million points each in Multiplayer.
Both players get their multiplier to x10 in Multiplayer.
Complete all 16 levels on Black Belt in Single Player.
Get all the Beastie Combos by shooting a certain amount of each of the special beasties.
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