Today's update features a fairly obscure SNES wrestling game, which lacks a real wrestling license but does include four-player functionality. In addition, there's a demo for Dive: The Medes Islands Secret.
DSiWare features another budget G.G. Series game, this time a shooter featuring tanks, and a port of PC puzzler Shapo. We haven't played the game, so we can't comment on the actual quality, but "Shapo" is way fun to say in whatever manner you choose to pronounce it.