Chiptune Runner is a Universal iOS "endless runner" game played across a step-sequencer, with selectable chiptune instruments! This alone might not be worth a mention, but this also offers the ability to create your own levels and thus your own songs!
Chiptune Runner iTunes Description:
PLAY AND CREATE MUSIC WITH CHIPTUNE RUNNER!
Chiptune Runner is an indie music video game where an endless runner meets step sequencer. Take your hero on an exciting journey through platform levels, fight epic battles against bosses, make your own chiptunes, be the Chiptune Runner!
- music endless runner
- real time chiptune music creation
- built-in step sequencer
- over 30 unique levels and more in updates
- 4 game modes
- epic boss fights!
- in-game level editor
- online levels sharing
- new heroes to unlock
- chiptune music instruments to collect
- iOS 7 and Game Center support
Here is the official launch trailer, you can find some songs produced with this game on the developer's SoundCloud.