Print intermission scenes:
Press Select during an intermission scene to print it on a Game Boy Printer.

Full hearts:
Obtain at least thirty jewels. When down to your last heart, save the game, then restart and load that saved game. Your hearts will be restored to full.

Hint: More money and energy:
Use the shovel to dig at every location to increase your money and energy.

Hint: Defeating Bosses:
Maneuver a Boss against a wall, then keep hitting it with your sword.