An Untitled Story (2007)

In this Metroidvania game, players control an egg through a vast world, navigating many tricky platforming sections, defeating various bosses, finding upgrades to help them reach new locations, and collecting life-increasing hearts to survive exploring them. Also included is a multiplayer 'Heist Mode' with gameplay very similar to capture-the-flag.

Storyline

You are an egg. Leap out of your nest and begin exploring the world, collecting hearts to increase your life and upgrades that can help you jump higher or give you other abilities.