Unlimited energy:
Load or reset the game, then execute the following BASIC commands before running or restarting the program. 

POKE 6571,234
POKE 6572,234
POKE 6573,234
SYS 6454 
Level passwords: 

JOYSTICK
SPECTRUM
SOFTWARE
KEYBOARD
COMPUTER
CASSETTE
SINCLAIR
GRAPHICS
HARDWARE
TERMINAL
PASSWORD