Hyper speed RPG Yuusha 30 (aka Hero for 30sec overseas) will be in Japanese stores on May 28 and it won’t cost as much as a standard PSP game. Marvelous set the price at 4,410 yen ($48). Yeah, that sounds expensive, but Dissidia: Final Fantasy went on sale there for 6,090 yen ($67). When Hero for 30sec gets released over here I imagine it will be a $29.99 or less.
Not sure you want to spend that kind of money? Sony put a demo up on Japan’s PlayStation Store. Go grab it with a Japanese PSN account.