Melty Blood: Re-ACT - Final Tuned Cheats, Codes

Melty Blood (メルティブラッド, Meruti Buraddo), is a visual novel and fighting game, co-developed by dōjin circles Type-Moon and French-Bread, originally released at Comiket in December 2002. It is shortened as simply Merubura (メルブラ).
Cheat codes, console commands, secrets:
Hidden options:
While entering the options menu, hold [D] to access hidden options
that allow changes to the speed, recovery type from attacks, and more.

Fight against G-Akiha
At the main menu, highlight the "Arcade Mode" option,
then hold [D] and press [A] to select it. If you entered the code correctly,
the character selection screen background will turn blue.
The best times that G-Akiha has been defeated will also be posted on a screen.

Fight against Aozaki Aoko:
Successfully complete Arcade mode without losing any fights
to fight Aozaki Aoko after White Len. Win the match to unlock
hidden dialogue during the ending credits and an extra image
of the character that defeated her.
Cheat codes, console commands, secrets and system requirements for Melty Blood: Re-ACT - Final Tuned free online.