Killer7

Killer 8: 100 Serum Vials:
Press Down, R, Up, L, Y, B, X, A(2), at the the "Press Start" screen. The healing sound will confirm correct code entry. You will get the vials when you start Target: Angel. Repeat the level over with the code enabled to get another 100 vials.

Killer 8 mode:
Successfully complete the game under the normal or hard difficulty setting. Young Harman is a playable character in this mode.

Alternate ending sequence:
Successfully complete Killer 8 mode.

Hopper 7 mode:
Successfully complete the game in Killer 8 mode.
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