*TENCHU TODAY*
Deadly Creatures is awesome in a Discovery Channel bug-cam sort of way.
Tenchu is confirmed to have decent production values and waggle effects.
MadWorld is the next venture into beat'em-up, disembowelling, guts-gurgling arcade gameplay.
The House of the Dead: Overkill needs no intro, cuz it has TERROR, HORROR, FLESH, ICE CREAM, and VIOLENCE.
The above titles are dedicated action/adventure non-casual games that are worth a look: when you disregard the visuals, you can see they're all about providing interesting uses of the Wii Remote.
This is a landmark phase in Wii game releases because we're looking at the final string of "experimental" "traditional" titles leading up to the release of Wii Lotion Puss. After which, things will CHANGE.