Cheat mode: Highlight "Arcade Game" and press A. The next screen will have two options "Begin Game" or "Exit". At this screen, press Up(2), Down(2), Left, Right, Left, Right, B, A, B, A. The game will begin when you press the last A. Your lives will display as "4", but you will have 30, and your gun will always be the missiles in rapid fire mode. Note: You cannot earn achievements or rank in the leaderboards when this code is enabled.
Achievements: Complete the following achievements to unlock Xbox Live Gamerscore points.
Good Start (10 points): Complete level 1 in less than 3 minutes.
Two Levels (10 points): Complete level 2 while playing an Xbox Live CO-OP game.
Three Levels (15 points): Complete level 3 in Single Player or Multi-Player mode.
Four Levels (20 points): Complete level 4 in Single Player mode.
Five Levels (30 points): Complete level 5 in Single Player or Multi-Player mode.
Armory (15 points): Collect 5 different weapon types.
Good Score (10 points): Reach level 2 with a score of 100,000 or more.
Team Players (20 points): Score 300,000 points in an Xbox Live CO-OP game, while still alive.
Shot Down (15 points): Destroy the helicopter without dying once.
Elite Soldiers (10 points): Both players possess a Spread Gun at the same time at some point in the game.
Endurance (10 points): Both players must complete level 1 without losing lives in an Xbox Live CO-OP game.
Master (35 points): Complete the game using only 1 credit.
