Meet the following conditions to unlock these secrets:
Unlockable How to Unlock Arcade Stage Select Complete "13 Plane Arcade Mode" once. Extra Stage Select Complete "13 Plane Extra Mode" once. R-Gear Rollout Complete "Extra Mode" once. R-Gray 0 Complete "Arcade Mode" once. Rate Viewer Complete "13 Plane Arcade Mode" or "13 Plane Extra Mode" once. Unlimited Credits Continue the game a total of 50 times.
Contributed By: Edelweisz.
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