Shark! Hunting the Great White

Shark! Hunting the Great White cheat codes: 
Mystery level:
Successfully complete each level in career mode to
unlock the "Mystery" level. This level requires that
you find and kill a Megatooth shark.

Bonus items:
The following bonus items can be found in the
corresponding career mode level.

California Beach     : Improved Suit
Ajanta Temple        : Pneumatic Speargun
Cuba Caves           : Improved Fins
Caribbean Wreck      : Improved Tank
Rhodes Temple        : Heavy Pneumatic Speargun
Australian Reef High : Tech Fins