(PAR) Alex Kidd The Lost Stars

[Melanogaster]

00CD 0A01
Invincibility after the first hit (time will still make the energy bar decrease)

00CD 1D02
Infinite energy (not invincible, though. Keeps showing two "used" units of the energy bar. Time won't make it decrease, and you must disable the code at the end of the level, or else the bonus points will count forever)

00CD 0114
Unlimited cloud shots

00CD 0601
High jump (makes a really annoying sound)

[Melanogaster]

00D0 02XX
Trigger music and sound effects (replace the XX on the code for a hexadecimal number from 81 to B4 to listen to the game's sound tracks and sound effects. You must enable and disable the code for it to work. Note that whenever you trigger a sound effect/track, whatever sound you triggered will play only until the game itself triggers another preprogrammed sound -- i.e. when starting a new stage, dying and restarting the stage, etc)