Last week or so, I bought the WiiWare game Megaman 9. Its fun, but its HARD.  The game has an amazingly realistic retro feel to it.  You could absolutely believe this game out on the NES around 1990 or so. Its not just the 8-bit graphics: the music  and sound are totally authentic (including limited channels, leading to missing music when too many sound effects play at one time.)  The game also realistically emulates the NES’s flicker when too many sprites are on one scan line.  Even old-school Megaman bugs are included, like enemies disappearing into the ether the instant they step off-screen.

I doubt the game will be of much interest to younger gamers, but for the people who grew up playing NES classics like Megaman 1-6, the game is a blast.  I still haven’t beat it.  As I said, its hard.  No harder than Megaman 2&3, but my skills seem to have degraded significantly since then…