Well, Metal Slug Anthology has taught me that shooters are fun, and I was hoping to get a shooter on the Wii's Virtual Console, but because they used to release one or two every week, I'm completely stumped on this.
The bigger titles I instantly notice are:
Gradius 3
Contra and Super C
Lords of Thunder
Gunstar Heroes
I at least know those receive very positive feedback from fans of the genre, but there are many others. Any kind of shooter, really, where you dodge bullets and get power-ups. But what I'm really leaning toward is one where you run and gun, like in Contra and Gunstar. I'm also considering that updated version of Galaga, just because the Galaga I had for the NES was great fun. Not the same kind of shooter, but ah well.
So, any suggestions?