Kirby's Epic Yarn - Digital Prototyping

 Kirby's Epic Yarn is a side-scrolling platformer game developed and published by Nintendo, and released in 2010 for the Wii. Starring Nintendo's classic titular character Kirby, a spherical pink omnidigesting being. In the game, Kirby is made entirely of yarn, as is the world around him. By manipulating his own body shape, Kirby can assume new forms like a car, a parachute, or a submarine. Kirby can also pull in strings in the environment to change the level itself.

Combat functions interestingly. The player cannot actually lose, but they do drop their beads, which act as the currency of the game. The player attacks by unraveling enemies, or simply grabbing them and using the yarn that composed them to throw. Some enemies must be stunned before being unraveled, such as boss monsters. Defeating enemies in creative ways can yield beads. Certain powerups provide Kirby with extra yarn, allowing him to change himself into a tank, a UFO, an excavator, and other vehicles.

A digital prototype of Epic Yarn could involve a simple sprite in a side-scrolling platformer that can change the game environment. No health bar would be included, and the primary goals would be finishing the level and collecting small dots.