If you're feeling pretty impressed with your concentration skills, finger dexterity, and lack of RSI these days, then the new release Sin & Punishment - Star Successor might be the perfect title to either confirm or deny that belief. It's a hyper rails-shooter that is long on frenetic bursts of opponents and short on breaks. It's a button masher to match the most relentless of them, kids, so if that's what you're looking for then satisfaction may be near.
I won't spend too much time on the backstory, because the game doesn't either. It's not that there isn't one (as the booklet can attest) but it's horribly confusing and really only referenced in detail off-game. Once you actually start playing, all that matters is that you are one of a couple of protagonists trying to escape the evil clutches of a whole lot of other people. Bad people. People with a slew of weapons. You play as either Isa or Kachi, two elvin looking anime teens, each with their own attack modes and means of hover transport. The game is structured as a third-person rails shooter, but you don't really see the other main character that much expect for in cut scenes (more on this later regarding the two player mode). So with just a minimal amount of story prep that amounts to "You done bad, now you must die. DIE!" you are off to the races.
Controls are mainly handled by using the remote and nunchuk. If you've played Wii games like Metroid then you should feel right at home. Here it's a bit more simplistic, as your movement commands do not affect forward or backward motion, but simply the up-down and left-right aspect of the rails guidance system. You'll need to be quick in order to pick up powerups and bonuses, but the rails mechanism wants to quickly move you past those opportunities. If you're more of a traditionalist, you can also plug in the classic controller and kick it like we did with quarters, but to be honest, the standard Wii controls work very intuitively and there isn't much of a need to seek out other options.