Achievements
Complete the following achievements to unlock Xbox Live Gamerscore points:
Empire Level 1 (5) - Complete Level 1 on any difficulty.
Empire World 1 (10) - Complete World 1 on any difficulty.
Empire World 2 (10) - Complete World 2 on any difficulty.
Empire World 3 (15) - Complete World 3 on any difficulty.
Empire World 4 (20) - Complete World 4 on any difficulty.
10x Multiplier (25) - Get the multiplier to x10 in Single Player.
10x Multiplier Twins (20) - Both players get their multiplier to x10 in Multiplayer.
2x Multiplier (5) - Get the multiplier to x2 in Single Player.
All Beastie Combos (30) - Get all the Beastie Combos by shooting a certain amount of each of the special beasties.
Beastie Combo (5) - Get a Beastie Combo by shooting a certain amount of only 1 type of beastie.
Black Belt Grandmaster (35) - Complete all 16 levels on Black Belt in Single Player.
Millionaire Twins (20) - Both players get a million points each in Multiplayer.