Though there's a lot of content on DSiWare in Japan today, it's almost entirely training stuff. So, it would seem that DSiWare stepped aside to let WiiWare's single release shine this week. (That's probably not what really happened -- but it's a nice thought.)

In any case, Mega Man 10 is up on WiiWare in Japan today, and it's likely to overshadow anything else available this week, including the ancient Moon Cresta:

• Mega Man 10 (WiiWare, 1 player, 1,000 Wii Points)
• Moon Cresta (VC Arcade, 1-2 players, 800 Wii Points)

• G.G. Series Throw Out (DSiWare, 1 player, 200 DSi Points)
• Renjuku Kanji: Shougaku 4-nensei (DSiWare, 1 player, 500 DSi Points)
• Renjuku Kanji: Shougaku 5-nensei (DSiWare, 1 player, 500 DSi Points)
• Brain Challenge (DSiWare, 1 player, 500 DSi Points)
• Let's Golf (DSiWare, 1 player, 800 DSi Points)