Super Buster Bros. is a kind of tough game, and if you want to get to the end of it, you're going to have to invest a lot of time, effort, and energy.

Or you could take a shortcut.

You could to go the Game Select screen, grab Controller 1 and press

L, R, R, L, Up, Down

Done right, you'll see a number appear in the middle of the screen.

Which you can ratchet all the way up to 40, where the game gets kind of tough.

Or you could use it as a kind of continue feature to start the game where you left off the last time. It's up to you, really.