The following characters and modes can be unlocked by performing the actions listed below:

• Challenge Mode - Beat Adventure Mode
• Claude Lobster - Beat Stage 4
• Flippers - Beat Stage 4
• Flower Power - Beat Stage 6
• Jimmy Lightning - Beat Stage 1
• Kat Tut - Beat Stage 2
• Multiball - Beat Stage 1
• Multplayer Levels - Beat levels in singleplayer
• Pyramid - Beat Stage 2
• Renfield Pumpkin - Beat Stage 5
• Space Blast - Beat Stage 3
• Splork Sporkan - Beat Stage 3
• Spooky Ball - Beat Stage 5
• Tula Sunflower - Beat Stage 6