There's no WiiWare this week in Japan, but there is the best 8-bit adaptation of Street Fighter II ever. Not that the PC Engine version has much competition outside of pirate Famicom cartridges and the terrible Game Boy port. But the PC Engine's SF2 holds up respectably against even the Genesis and SNES versions. It's joined on Virtual Console by a pair of tank games from Namco.
DSiWare offers a Chinese vocabulary learning tool and a new puzzle game by Intelligent Systems. Panel Connection involves setting panels into a grid to create an uninterrupe\ted exhaust path for a rocket.