Achievements
Complete each achievement to get the allotted gamerscore
Boss Battle Stage 1
You can essentially end the boss battle immediately if you save up an entire chip set 3 100s As soon as the boss appears jump into the centre of the square so it encloses you inside of it After a few seconds the boss should become hittable and you should unleash 3 consecutive ultimate bursts The boss will instantly die because the burst will hit every single corner piece from the inside
Characters
How to get RAD and Sensei
UnlockableHowRADComplete Arcade Mode using RubySenseiComplete Arcade Mode using TempestCredits
You get credits for gametime
UnlockableHow5 creditsPlay for 60 minutes total8 creditsPlay for 180 minutes totalExtra CreditsAs gameplay time elapses 5 credits at 60 minutesUnlimited creditsPlay for 300 minutes totalFemale System Voice
Complete Arcade Mode using RAD to unlock the female system voice
Modes
Complete the Arcade Mode to unlock these modes
UnlockableHowArcade Mode Complete Arcade ModeChallenge ModeComplete Arcade ModeChallenge Mode Complete Arcade ModeRetro ModeComplete Arcade Mode using SenseiUnlockable Extras
There are a number of unlockables after satisfying game conditions These can be unlocked by continuing and Im not sure if you need to finish the game using the same character throughout but its the safest choice