Trailblazer

Cheat mode:
Press Z + X +C.

Alternate music:
Press [Shift/Lock].

Unlimited time:
Load or reset the game, then execute the following BASIC commands before running or restarting the program.
POKE 29738,234
POKE 29739,234
SYS 25729

Unlimited jumps:
Load or reset the game, then execute the following BASIC commands before running or restarting the program.
POKE 30889,234
POKE 30890,234
POKE 30891,234
SYS 25729