Unlock the following endings by performing the corresponding actions:
ENDING – HOW TO UNLOCK
Bad ending – Leave with Kazuma in the Egg Corridor.
Good ending – Complete the Sacred Grounds area.
Normal ending – Complete the escape sequence after the final boss without going through the Sacred Grounds.
After talking with Chaco about the Jellyfish Juice, rest in her bed. When you wake up, her lipstick will be in your inventory.
Get Jet Pack earlier:
The Machine Gun can be used as a “jet pack” at Level 3. Just jump and aim it downward to float up until you’re out of ammo..
Obtaining the Spur:
Once you get to Curly and beat her in the Sand Zone, don’t trade your Polar Star for the Machine Gun. You can later trade it for the Spur; the strongest weapon in the game.