U1 Zone:
Successfully complete the game in under the hard difficulty setting with 90 AP and without using any continues.

U2 Zone:
Successfully complete the game in under the hard difficulty setting with 60 AP.

U3 Zone:
Successfully complete the game in under the hard difficulty setting with 50 AP.

U4 Zone:
Successfully complete the game under the normal difficulty setting with 90 AP and without using any continues.

U5 Zone:
Successfully complete the game under the normal difficulty setting with 60 AP.

U7 Zone:
Successfully complete the game under the hard difficulty setting without using any continues.

U8 Zone:
Successfully complete the game under the normal difficulty setting.

U9 Zone:
Successfully complete the game under the normal difficulty setting without using any continues.

V5 Zone:
Successfully complete the game with 60 AP

Inner Level A:
Successfully complete the game with 60 AP (with invincibility, all weapons at level 9)

Inner Level B:
Successfully complete the game under the hard difficulty setting with 90 AP (with unlimited special attacks, all weapons at level 3)

Inner Level C:
Successfully complete the game under the normal difficulty setting (with highest speed, all weapons at level 9)

Inner Level D:
Successfully complete the game under the normal difficulty setting with 90 AP (with five-way attack, all weapons at level 9)

Inner Level E:
Successfully complete the game under the hard difficulty setting (with improved speed when moving up, down, left, right, all weapons at level 9)

Control loading screen:
Press the D-pad or Analog-stick on the loading screen that features the red squares to change their location.