Bakuretsu Muteki Bangaioh Cheat Codes for Dreamcast

Cheat mode
Enter "3 Groundhogs" (found towards the end of the name entry list of characters) as a name to unlock an extra menu at the options screen and 44 levels.

The extra options are:
Riki's shot trail thickness:


Normal (thin)/Thick
Mami's shot trails: Normal (thin)/Thick/Large Missile/Thick (N64 style)
Explosion Fragments: Normal/None/Heavy
Background: Normal/None/?
Invincibility: On/Off