Invincibility:Press A Y during game play to become invincible while moving and changing the angle of your shots. You will become vulnerable again when you stop shooting or enter a different room.Achievements:ACHIEVEMENT – HOW TO UNLOCKFirst Boss – Defeat the final Boss in level 1 on the default settings.Second Boss – Defeat the final Boss in level 2 on the default settings.Third Mini Boss – Defeat the mini Boss in level 3 on the default settings.Final Boss – Defeat the final boss in level 3 on the default settings.High score – Get first place on the game score board on the default settings,Level 1 Master – Beat level 1 without continuing on the default settings.Level 2 Master – Beat level 2 without continuing on the default settings.Level 3 Master – Beat level 3 without continuing on the default settings.Cash Pile – Get 2,000,000 points at the end of level 1.Co-Op – Beat level 1 with another player on the default settings.Co-Op Master – Beat the game with another player on the default settings.Game Master – Beat the game without continuing on the default settings.