PSP PSP hidden gems?

[thanonyx]

WTF: Work Time Fun

It's a bunch of mini games where you earn money to buy trinkets from vending machines.

It's really weird but at the same time really fun.

 

[stealthRUSH]

Bomberman: Bakufuu Sentai Bomberman

interesting take on the original series re-imagined as a tokusatsu team

 

[oldfrankie]

- Infected, pretty strange but catchy gameplay and good soundtrack
- OMG-Z (minis game) kind of chain reaction zombie shooter

Gitaroo Man Lives was mentioned in the first post, but I strongly recommend not only play US or EU version, but JP version as well because as far as I remember some songs in it are a bit different.

 

[MadzombieBane]

Tokimeki Memorial Girl's Side: 3rd Story both a ds game and a psp game lol