Mastiff, a San Francisco based developer and publisher of videogames, announced today that Nihon Falcom’s action-RPG, Gurumin: A Monstrous Adventure has become the first third-party PSP (PlayStation®Portable) system title available for online purchase and download to the PSP system through the PLAYSTATION Store and is available now

Gurumin features Include:

• Non-linear game play in over 30 stages set in a variety of environments.

• 23 non-player characters, 48 unique enemies, and more than 90 items to collect.

• 18+ costumes to unlock, and 15 equip-able headgear to level up.

• Destroy everything in your path with your legendary drill: almost all objects in a stage can be destroyed, and many hide money and valuable items.

• Challenging boss battles, puzzles and traps.

• Mini-games galore! Hidden characters, modes and other secrets.

For more information on Gurumin: A Monstrous Adventure please visit www.gurumin.us.