N

Controls: Left, Right, Jump

In many platformers, from Mario on, the height of your jump is defined by how long you press the jump button. when you hit the jump button in N the game reduces gravity, and when you release it gravity is reinstated again. The longer gravity is reduced, the higher you jump, producing a very different feel to most platformers.

Most platformers give a set vertical velocity to a jump, and its length is often governed by the character’s horizontal velocity. But in N, instead of resetting your vertical velocity to a standard figure when you jump, it adds to it. So if you’re already going up, jumping gains you vertical speed. --rewrite in own words