What are some alternatives?
When comparing SpeedRunners and Bit.Trip Runner, you can also consider the following products
Super Mario Run - The mobile Mario game you can play with one hand!
The Impossible Game - Official website for the super-addictive and very, very hard platform game.
Canabalt - The classic, side-scrolling, retro-themed endless runner game.
Voxel Rush - Superfast, minimalistic and extreme 3D racing game! Now with real-time multiplayer!
Chameleon Run - Chameleon Run is a fast and challenging endless runner with a colorful twist.
Super Hexagon - Super Hexagon is a minimal action game by Terry Cavanagh, with music by Chipzel.