Among its other distinctive qualities,
Gurumin manages to make the Action/RPG work where others have failed. Too often these become very formula with most of the strategic aspects of an RPG watered down. The so-called action that most games feature is not more than running around and pressing a button to attack or another button to cast magic.
Gurumin makes battling strategic in the sense that armor and weapon use must be calculated to address enemy strengths and weaknesses. The action is built on a library of moves and combos that grow as you progress through the game. Characters in the human village that serves as your corporeal base of operations will offer to sell you items or upgrade your existing items.
Gurumin doesn't offer much depth in terms of equipment or weapon combinations, but you can carry a few variations and choose what best suits the environment.
Gurumin is built around exploration of a series of dungeons where bad guys called Phantoms have taken over. The main character gets friendly with the good guys and they implore her to help them defeat the Phantoms and their master, The Prince. This is standard stuff with a twist where the good guys end up being monsters. For a little girl on her own in a boring town, hanging out with a bunch of monsters sounds fun. When the Phantom menace arises, it will take all the resources and wits the little girl can muster to set things right in Monster Village.
Each dungeon includes lots of secret items and areas. Gurumin even synchs with the PSP calendar to feature special items on national holidays. Finding secret items in the landscape is made easier because of the weapon that the girl, Parin, uses. Early in the game, she pulls a drill out of the ground with a "sword in the stone" flourish. Yes, a drill. If you don't know how a drill can be used as a weapon, you haven't seen enough slasher flicks... Luckily Gurumin doesn't go in for the yucky, red stuff. Everything is nice and clean, but the drill becomes an amazing weapon. Charging and leveling up the drill is an important connection to the RPG world. Without this and some features like upgrading armor, there wouldn't be much RPG included in this Action/RPG. Dungeons are short and fast-paced, so replay value is high.