I actually am enjoying Red Steel on the Wii. It is a awesome mature like game. Even though it has a Teen rating. It still is a awesome game.
The controls are confusing at first, but I quickly adapted to them within a hour or so. The sword fights are easy, but is awesome swinging my arms around like I am actually slicing someone with a sword.
I mean there isn't that many mature games on the Wii, but I recommend you give Red Steel and Resident Evil 4 Wii Edition a spin and play some old Gamecube games that were awesome at its time. That will cover you up when the time comes for third parties to release a wealth of content for the mature audience.