I played a level-based infinite runner called "Wild Run". This is another game made by Skazdal. I played one of his other games on the ITS Gaming YouTube channel a little bit ago: The prototype for Void Miner.
In Wild Run, your goal is to make it past an obstacle course set in the woods. To aid you in this, you can use your shapeshifting ability to turn into into three different animals. Each animal has their own set of abilities that will help you complete the level. The bear helps you crash through otherwise unavoidable objects. The hare helps you leap onto faraway ledges and crawl through small gaps. Last but not least, the crow allows you to fly across vast chasms.
The game consists of six infinite runner levels, four of which are tutorials. There is one tutorial level for each animal. The fourth tutorial steps you through how and when to use your shapeshifting powers. This is good, because you won't become overwhelmed. Wild Run is a difficult endless runner, but Skazdal has done an excellent job of teaching you how to play.
Each level has a certain number of gems. Collecting the gems won't assist you in any way, but it adds an extra challenge. This also encourages you to try more difficult paths.
Wild Run was created for the Ludum Dare #35, 48 hour competition. The version of the game that I played and that Skazdal has available on Game Jolt is a polished version of his original entry. You can play the original competition entry here: http://ludumdare.com/compo/ludum-dare-35/?action=preview&uid=60779
I had a lot of fun playing this game! If you enjoy platformers, endless runners, interesting game mechanics, or just a good challenge, I highly recommend you give the game a try.