The tunes were altered slightly to get them to sync up with eachother.
The PC tune is in the left speaker, and the Wii is in the right speaker.
Request a Cave Story tune, and I'll do a PC + Wii mix of it.

Comments: I never really listened to the Wii tune, and I think it's pretty cool. I especially like the beginning of it in this mix.
This was one of the few songs which was slowed down instead of sped up, as the Wii tune was faster than the PC tune.
This was also a short song, so it was looped a couple of times so that it doesn't wear out two seconds in.
This may be a bit louder than other tunes too.