This is a fun and challenging track, really well-made and high quality.
The only issue I'm having is in the menu, when selecting 1 of the 6 layouts in content manager, they're not showing the outlines, so they're just empty buttons. The layouts do show in the image previews above, so it's not a big deal. Comparing to the files of other tracks, it seems the images used for these buttons are just empty layout.pngs for Ruapuna.
The track itself though is great!