I've banged on about the quality of Grip's output here previously, and they were the first to participate in our indie devleloper interview series. I now love them even more, as they've released three of their games in one bundle for a mere £1.99 via the PlayStation Store! The bundle includes 5-in-1 Arcade Hits, a fairly uninspiring but competent collection of mini-games, MiniSquadron, an addictive 2D flight combat game with tonnes of stuff to do and unlock, and One Epic Game, a chock-full-of-content platformer that fully lives up to it's name. Obviously MiniSquadron and One Epic Game are the ones to get excited about, but 5-in-1 Arcade Hits isn't a bad bonus. Together, these games will eat up hours of your time, and provide you with some of the best fun you can have on PSP and PS3.
Not bad for two quid.