One week ago today, Mega Man 9 sold a healthy 60,000 digital copies via WiiWare. Now, one week later, the title has continued to show promise, with 140,000 copies sold and $1.4 million in revenue.

That’s a pretty good chunk of change for Capcom. The game was inexpensive to produce (and I’m talking strictly time, not talent), and was a blast to play, so here’s hoping other developers are taking note–if they haven’t started development already.

On a final note, what better way to celebrate MM9′s success today than a great new Penny Arcade comic. As always, it’s funny because it’s true.

Update: These are WiiWare downloads (says VG Chartz tracking data).