Sony PlayStation Portable: Cheats and Tips
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All Games

Viper Card
Input VIPER as a password to get a card featuring Black Arts Viper.
100% success rate. 

XM8 Card
Input XMEIGHT as a password to get a weapon card with 50 attack, 60% hit, 5.56mm bullets, 6 shots, 70% reaction, move 6 spaces, and knockback.
100% success rate. 

Jehuty Card
Input JEHUTY as a password to get a card featuring Jehuty from Zone of the Enders. Note: This card will destroy all equipment and equipment level-ups in the current room.

Karen Card
Input KAREN as a password to get a card featuring Karen from Policenauts.

Mika Card
Input MIKA as a password to get a card featuring Mika from Snatcher.

View Model Clips
Input either ELYTS or MAEB as a password to view clips featuring Japanese models.

Above are all the Metal Gear Acid cheats, codes, tips, hints, secrets and walkthoughs that are currently in the Cheat Chest database. Because we do not have every game for Sony PlayStation Portable, Cheat Chest unfortunately can not guarantee that each Metal Gear Acid cheat we have works. If any of the cheat codes above is incorrect, please rate the Metal Gear Acid cheats at our partner site Neon Gaming, as enough bad ratings will automatically remove the cheat from our database.