Fight as Virtual Ryumaou
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.

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.

Fight as Bokuchin
Defeat Bokuchin during the game.

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

Dark Dragon Claw
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: Extra items and money for Ryuhi
Enter the code that is printed on page 16 in the instruction manual to start with two medals, super items, and extra of money.

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: 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.

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

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

Hint: Remove and use items
If you enter the Treasure Box and enter the Status area, you can remove items from the characters and use them yourself. For example, Suzaku can use the Dragon Claw and Ryuhi can use the Nameless Feather.

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.

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

Fight as Ryumaou
Defeat Ryumaou in the Ryumaou tournament.

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