Game shark codes: 

Stop timers 
8007B538 0FA0

Infinite health 
80082964 8000 

All spells 
30082685 00F0 

All beans (red)
800827FA 0100 

All beans (yellow) 
800827EE 000F

All beans (blue) 
800827F2 000F 

All beans (green)
800827F6 0100

Press L1 for extra house points 
D0078D0E FBFF 
800827DC 7000 
D0078D0E FBFF 
800827DE 003E