TouchArcade: Satellina [$1.99] tries to apply a minimalist veneer and an arena-survival touch to the speedrun genre, and while its challenges are small in nature, there's fun to be had here. The goal is to move your X avatar around an arena full of green, yellow, and red particles. The green particles are the ones you must collect, with the yellow and red ones killing you, and forcing you to start the level over. However, those yellow particles turn green once all the green ones are collected, and the red ones turn yellow, and so on. The game is structured with 10 different sets of 5 levels, where you must try to beat the set as quickly as possible. As a completion game, it's not much, as everything can be tackled through sheer force of will, so this is primarily for speedrun fanatics. There is a clever progression structure where multiple level paths open up as you complete different level sets.