Strategy Guide
1. Image Gallery 3 option
Finish the game on hard mode Successfully to unlock the Image Gallery 3 option
2. Hard mode
Complete the game with a 100% completion percentage successfully to unlock hard mode
3. Wave Troopers
charge a (wave beam) or use wave beams or at it (2 to 4 times)
4. Ice Troopers
charge an (ice beam) or use ice beams at it and finish it with one missile
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