Guy Does Amazing Acappella Versions Of Video Game Theme Songs

I've never been a huge video gamer, but I can appreciate the talents of a guy who goes by the name of Smooth McGroove. His thing is that he does a cappella versions of video game theme songs. He's got his own YouTube channel that features themes from "Tetris", "Punch Out" and many others. The video above features him performing "Zelda".

I shared this video with my oldest son who says this guy is pretty spot on. He layers his voice multiple times and adds some effects for good measure. (I was hoping he'd add something really retro like "Pong", but no such luck).