The first tutorial instruction is simply too far and too low res to be read. I would suggest bringing it closer.
I also had a really hard time pulling the tripple jump.
I *really* enjoyed the graphics, but I will be honest with you - it looks more like a Saturn game than a N64 . Must also commend you on the controls - it really feels like Mario 64! And that's no easy feat.
Finally, it was really funny that you can simply say no to everything and go explore the terrain. You should include some funny secret in there, somewhere :P
Tested on MacOS Monterrey (Macbook Air 2017) as well as with Ubuntu Linux 20.04 (on a Macbook 2008). Ran smootly on the MB Air, but could only run in software mode on Linux (due to the hardware age). It was choppy, but playable.