Here's a game demo where you can use the Leap, both grounded and mounted to the Rift, to do things such as grab and throw objects like Bob-ombs and Goombas from the original game and other cool stuff.
I've implemented a way to move and jump with the Rift's positional tracker too by leaning in different directions so you can move around and play with objects with just the 2 devices.
The source code is available too.
You can see the Leap, as well as the Razer Hydra, in this video playthrough:
Windows executable download:
http://assets.zookal.com/downloads/sm64vr/sm64vr.zip
Website:
http://chrisjz.github.io/sm64vr/
Source code:
https://github.com/chrisjz/sm64vr
