Start point - on the start/options screen.

Ending point - When you jump on the finishing scroll ring after you beat the purple golem bosses on cliff 2.

Continue system - Starts you at the beginning of the stage you game-overed on.

Unclear mechanics

Jumping higher - Unlike traditional platformers with a double jump, this one makes you jump higher the sooner you press jump again after the initial jump.

Flying/gliding - To fly/glide you need to press A button once to begin flying downwards, then press A again(holding the direction you want to go) to fly horizontal, and press A again to fly upwards. This is required to beat cliff 2.

Melee attack - down+shuriken is a close range melee

Upwards Kick - The bumpers do an upwards kick in their respective direction.

Beating the levels - Not all levels are finished by going directly to the right.