Kickle Cubicle is kind of a weird game, there's really no getting around that. You kick cubes of ice around a playfield to gather powerups and defeat enemies (hence the name).
But let's say for a moment, that you held down the Down arrow on Controller 1 before you turned the game on. You'd be greeted with a solid-colored screen.
From there, if you press either Left, Up, or Right on Controller 2, a battle with the first boss of the game starts!
Which is actually pretty easy to overcome.
Once you've beaten it, the game starts, at stage 1.
So why would you want to do that? To test your mettle against the first boss? To practice the boss battles?
I dunno, but I'm sure you can find a reason.