After catching the Magma Ball, start spinning as fast as you can get without hitting the edge. Try to pause game play while the spin meter is in green. After that, resume the game and immediately press A. This should result in a red hit most of the time.
Bonus Cards
Use a link cable and download the mini-game to a Game Boy Advance. Play through the mini-game to unlock bonus Monster Cards in the main game.
Monster Creation Power
Collect the Vision Orb after completing Beginner Course. Power 1 will now be available in the Hall Of Life. This Power allows you to create a monster with the attributes you specify, without going through the interview process.
Paint mode
Get the third Vision Orb from the Advanced course to unlock Paint mode. This allows you to customize individual colors of body parts.
Piggy Games
First beat the final level. After the credits play your file and go to the second item shop. There will be a pig. Talk to it and it will ask a question. Say yes and all of the Mini Games will be Piggy themed. If you want to stop, simply go to the pig and say no.
Pull And Stretch Power
Collect the Vision Orb after completing the Goofy Route on the Intermediate Course. Power 2 will now be available in the Hall Of Life. This Power lets you edit your monster's lines.
Size Power
Collect the Vision Orb after completing the Strict Route on the Intermediate Course. Power 3 will now be available in the Hall Of Life. This Power lets you resize and move body parts.
Slide Pattern Power
Collect the Vision Orb after completing the Dash Route on the Advanced Course. Power 4 will now be available in the Hall Of Life. This Power lets you slide a pattern after choosing a texture and pattern for your monster.
Sound Test option
Successfully complete the game to unlock the "Sound Test" option.
Stamp mode
Get the fourth Vision Orb from the Advanced course to unlock Stamp mode.