It may not be the most efficient way, but this demonstration of how to play the Game Boy Advance version of Rhythm Heaven with a laser and a Japanese sword is definitely the most impressive.

Originally uploaded to Japanese video site Nico Nico Douga earlier this year, this video of a man playing mini-game "Samurai Slice" from 2006's Rhythm Heaven involves slicing a beam of laser light focused on a photodiode which in turn mashes a rubbery finger on the Nintendo DS's A button, slicing up shit in-game.

The constant sheathing of the sword is just makes this Rhythm Heaven expert that much more bad-ass.

Samurai Slice from Rhythm Tengoku. With a twist! [YouTube via Reddit]