I just got Shock Troopers 1 and 2. f*ck yeah.
For those living in Europe: The Wii Virtual Console lineup of Master System, Mega Drive and NES games should be avoided. Those releases often contain the old PAL roms and thus run at 5/6 gameplay speed, squished with black horizontal bars and, for the earlier releases on these systems, even with 5/6 speed BGM.
For SNES and above, the games offered on VC are either old roms that had already been optimized for PAL back in the day when they were available on cartridge, with improved gameplay speed, less bars and correct BGM speed. Or just straight NTSC roms that run at 60 Hz no matter what (all TurboGrafx-16/PCE games).
E.g.:
Castlevania (NES): 5/6 gameplay speed, squished with horizontal bars, 5/6 BGM
Castlevania III (NES): 5/6 gameplay speed, squished with horizontal bars, correct BGM speed
Super Castlevania IV (SNES): Improved gameplay speed, slight bars, correct BGM speed
Castlevania X: Rondo of Blood (TG-16/PCE): NTSC (no reduction in gameplay speed, no bars, correct BGM speed).