The Armored Core Portable games are really good, if you can live with thr wonky controls. There’s Tekken 5 Dark Ressurrection, great port of the same.fighting game of the PS3. Gran Tourismo Portable is nice, alongside Wipeout Pure and Pulse, and Ridge Racer are all nice racing game options. And I cannot go without mentioning Monster Hunter Portable 3rd! One of the best in the series, easy to get into and has a fan translation available.