Like many console fighting games from the 90s, Schwarzerblitz has several cheat codes that can be inputed for achieving different effects. Cheat codes must be inputed in the title screen (that with the name of the game) by keeping Trigger pressed.
If a cheat code is successfully inputed, the screen will flash and Shaz's "OUCH" noise will play.
Cheat codes are not permanent: they last until the game is closed or until the "clear all cheats" code is inputed.

In the following:
P = Punch button
K = Kick button
T = Tech button
G = Guard button

While keeping Trigger pressed, input:
K P K K P T T T K G

While keeping Trigger pressed, input:
G G P P K K T T

While keeping Trigger pressed, input:
K K K K K K K P P P P P P P P P

While keeping Trigger pressed, input:
UP DOWN LEFT RIGHT UP DOWN LEFT RIGHT UP DOWN LEFT RIGHT

While keeping Trigger pressed, input:
G P G P G K

While keeping Trigger pressed, input:
RIGHT DOWN RIGHT P

While keeping Trigger pressed, input:
LEFT RIGHT LEFT RIGHT DOWN UP T

While keeping Trigger pressed, input:
P P RIGHT K T

While keeping Trigger pressed, input:
DOWN DOWN DOWN DOWN UP G
[Note: you will hear Renzo's "No Way" instead of Shaz's "Ouch" if this code is inputed successfully]