Or endless variety? I have already tried tr, tr2, jetpack joyride, sonic dash, subway surfers, verticus, one epic knight and iron man 3 Tr2 is too easy in my opinion, especially after level 9 when you get 2 gems per special. You can play for an hour without dying. Tr is better, but also no challenge for me anymore. Jetpack joyride is great, and will stay on my phone but I unlocked everything. Sonic dash is just plain horrible. Subway surfers is similar to tr2 in that you can run for hours because of hoverboards. I'm trying ironman 3, but are there any other great runners out there? Namely the new teenage mutant nt and the 2 paid temple run games. I need a game with a good mixture of challenge but doesn't force you to die after a while (jetpack joyride).