Early Magnet Beam

You can grab the Magnet Beam without Guts (or Elec) by executing a ladder zip.

Setup

Get Mega Man to the top of the right ladder below the magnet beam (it does not matter how you entered the screen). To get Mega Man into the glitch position, you must push down+shoot at the same time to get Mega Man into a climbing position above the top of the ladder. Then, if needed, shoot left so Mega Man is looking left.

Pushing UP will zip Mega Man into the wall.

Grabbing the Beam and Escaping

Once in the wall, jump, and at the peak of the jump, tap left. Mega Man should "get stuck" higher on the screen.

If you are not even with the magnet beam, jump and land to try again.

If you are on the level of the magnet beam, tap left until you collect the beam.

Do not walk all the way out of the wall. You will not be able to zip back inside. This is the so called GDQ Jail.

Jump to escape (much like reseting the zip to try again). Wiggle left and right at the bottom to get out and continue through the stage.

An advanced strat is to jump and try to tap left again at an even higher height to escape out the top