Continues and More:
Total Eclipse Turbo
For 10 continues, 10 plans, and 10 plasma shots, begin a game and pause it. At the Continue/Options screen, select "Options" then press Triangle, Square, Circle, Square, Triangle, Square, L1, L1 + R1, Select, Select. A skull should appear. Next, press Triangle, Square, L1, L1, L1, Square, Triangle. You may enter this code as often as you wish.
At the Options screen, highlight "Password" and hold Select. Press Triangle, L1, Square, then release Select and press Triangle, L1, Square, Triangle, L1, Square.
Thanks to Revolution reader Jason Sommerfeld!