Flying Dragon Codes -

Fight as Bokuchin:
Defeat Bokuchin during the game.

Ryumaou tournament:
Earn nine medals to play in the Ryumaou tournament.

Fight as Ryumaou:
Defeat Ryumaou in the Ryumaou tournament.

Fight as Virtual Ryumaou:
Successfully complete SD Hiryu mode as Ryumaou. Repeat this until receiving the random Skull of the Devil King prize. This will unlock Ryumaou at the Virtual Hiryu screen.

Easier difficulty level:
Highlight the "Easy" difficulty option, then repeatedly tap Left until "Very Easy" is displayed.

Harder difficulty level:
Highlight the "Hard" difficulty option, then repeatedly tap Right until "Very Hard" is displayed.

Platinum fighters:
Select "SD Hiryu" mode and fight in the circuit. Defeat a platinum character to earn a medal. The platinum characters will be playable after all ten medals have been collected.

Dark Dragon Claw:
Successfully complete the Ryumaou Tournament as Yuka at Rank S with 60 second, two round and normal difficulty settings. Note: You must already have nine medals.

Hint: Disappearing Wiler shirt:
Select Wiler do his Ninja Circus. If done correctly, he will not be wearing a shirt while climbing down the stick. However, it will reappear after he gets off the stick.

Hint: Black suit for Bokuchin:
Select Wiler and do his Wiler Bomb any other bomb with a character on Bokuchin. He will wear a new black suit briefly.

Hint: Red belt for Ryuhi:
Select Ryuhi and do his Super Kinryuha do Robo No Hana. His belt will turn red briefly.

Hint: Mystery third place winner:
Win the championship on circuit under SD Hiryu. Two other people will appear, but at times the third place winner will not be anyone that was in the championship.

Hint: Defeating Metal Robo Na Hanna:
Use the Mr. Virus item to damage Metal Robo Na Hanna. Also use projectiles during the battle.

Hint: Cheaper items:
Certain items may be sold by the store for less money at certain times. However, they will not appear unless you character is familiar with the girl.