Starfox was a rail shooter that used 3D models rather than scaled sprites.
the more complicated stuff came with third person shooters and similar. Where you either had fixed cameras, thus having the controls shift between "cuts", or the camera on its own control (tap your head and rub your tummy style).
Most of the people who encountered the N64 did not know how to hold the controller at first glance. This was made worse by the fact that practically every game has a different idea about how the controller was to be used. Nintendo had to settle a court-case by distributing gloves to players complaining of friction injuries.[0] .
This was mostly because developers didn't know how to deal with the control schemes of 3D environments very well, and Nintendo was planning for what they considered to be needed in the future : more controls.
There's very likely a reason that the M shape was never used for controllers again, however it did leave a lasting legacy in the form of trigger buttons (not shoulder buttons), which are now practically a universal controller feature.
Also analog sticks, which are even more important.
I'm pretty sure I saw someone being vapourised by one in an episode of Lexx, too.
I'd imagine the friction lawsuit had something to do with that.