General Tips & Glitches

Screen Wrap Ladder Grabs

If you jump off the top of a screen at a location where a ladder is on the bottom of the screen, notably in Cut Man and Wily 1, you can press Up and grab the ladder at the bottom of the screen.

This is considered a glitch and not allowed in Glitchless.

The Select Button

The select button is most famous for "mashing to keep hitting with Elec Beam" against Yellow Devil, but it does more than that.

The intended function of the Select button is to pause the game without entering the menu.

The specific trick against Yellow Devil is that enemy Invincibility Frames "run out" during a select pause. This allows the player to "mash" select (though it's better pressed with timing) to hit most bosses multiple times.

The select button can also be used to stop knockback with quick presses in places, and is in fact intentionally done in speedruns.