Almost instant join
Repeat pressing A and the demon will join
Cheats and Passwords
Skyfish
Dont fuse Skyfish with any monsters as you will need him later in the game to wake a sleeping monster
Blankernfish
Fuse a Cat Claw with a Wind Lord to obtain a Blankernfish
Get the five secret monsters
Find the five secret monsters and enter the following codes when asked
Ikonda Password Light
Lucifroz Password Dark
Pandora Password Megami
Chort Password Atlus
Starhair Password Tensei
Starhair
Find Pandora during game play then enter MEGAMI as a password