No Guitar
If you beat any level with MAUL, SPARTAN or WARBLADE, go to the
one you beat the level with and press A, B, X, Y, SELECT and START
like crazy for three to five seconds. Doing so will remove the
guitar music.
Password
To skip the pain of getting past the first two levels, enter the
password JKPWD. This password allows you to choose between WARBLADE,
MAUL, or SPARTAN.
To skip directly to the temple level, enter the password CRTVV.