Depends. The Wii was a gimmick-heavy console, as was the DS. Some devs did right by the systems, others...deserve to be drug out into the middle of the street and shot. Else be forced to play their own abominations until their soul escapes their body for that sweet, sweet release.
One game that gets shit on regularly also had a fantastic gimmick - Arc Rise Fantasia. The gimmick was that EVERY weapon had some sort of bonus to it - +# ATK/DEF/MAG, skills, etc. which were set in a 4x4-block ArmForce Frame. Every weapon also had an experience counter. As the weapon gained more experience, more blocks of that frame would be opened, until eventually you could remove, or add, skills from one weapon (which are shaped like Tetris pieces) and plop them into another. Which of course was MANDATORY to learn and learn well else the game would destroy you.