The system needs games that can actually benefit from being in 3D and not just having it tacked-on or halfhearted as a gimmick. I'm not sure if any of the games you mentioned are a good fit.
No More Heroes 3DS
MadWorld 3DS
Mass Effect 3DS
Dead Space 3DS
Dante's Inferno 3DS
Fear Effect 1 and 2 3DS
These types of games tend to be poor on handhelds, they perform much better on television systems. I've never played any of them though, so I don't know if being in 3D would enhance the experience.
Super Smash Brothers Rumble 3DS
New Super Mario Brothers 2 in 3D
These games have 2D movement so I can't see them benefiting form 3D. They would be like Wario Land and Mario Clash on Virtual Boy where they could have easily appeared on any other system, and the 3D aspect was nothing more than a cheap gimmick.
Punch-out 3DS
Now this one could be interesting. It'd be nerve-wracking if your opponent's punches jumped right out at you.
Red Steel 3DS
Conduit 3DS
Shooters might work too, especially if they use a first-person perspective. Imagine bullets whizzing by or explosions coming right at you.
DS Sports
DS Fit
DS Music
Any music game would be pointless on 3DS since it's all about sound. Similarly, I don't see the point of a fitness game either. Wii Sports is all about the control, so unless the 3DS has something to introduce in terms of control, it wouldn't be very interesting.