If you've ever perused the Wii section of your local game store, you've undoubtedly seen the number of plastic clip-on devices for it.With silly add-ons like a bowling ball and Babysitting Mama, which turns your Wii Remote into a giant baby, the Wii seems like the most peripheral-laden console yet. But bizarre accessories date all the way back to the Nintendo Entertainment System, which had quite a few unnecessary attachments of its own.

Acclaim's DoublePlayer

Camerica's Freedom Stick

Borderbund's U-Force