So, Mad World is going to be more 'fast-pased' and fun orientated then you might think T013... You've got a freaking chainsaw on your left arm, why wouldn't it be fast-passed?! 
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For the bloody and gory stuff... Ninja Gaiden is one of the most gory games out there and you can better compare NG2 to Mad World then to No More Heroes...
Let me think... Disaster Day of Crisis might be something, but that might be more action orientated... Nope, nothing coming!
Although I know for a fact that Silicon Knights, Retro, Suda51, Seeds, Monolith, Factor 5 and Platinum Games have AT LEAST 1 unannounced 'mature' game for Wii in development. All of those developers are known for their quality and good games.
EDIT: Monolith =/ Monolith Soft. (Known from F.E.A.R and Project Origin).
THE NETHERLANDS
