my idea will sound very strange to you, but I'll try it because it would be super for me.
My problem is that I'm totally blind and I have no sight. But it's still possible for me to play video games, but only 2d fighting like mortal kombat (which I love most) or street fighter.
As I looked through the hacks I found many for super mario kart for snes and I think three for mario kart 64 for the n64.
Now my idea: wouldn't it be possible to create a patch for the called two games so that the games are accessible for blind persons? The kart you are driving had to steer itself only. Or another choice, the tracks had to be straight. And perhaps a sound to know that I'm ready to fire on an opponent.
Do you think that would be possible? I really would love playing such games if it would be possible.
Didn't you have have a thread in another section where we contemplated that? http://www.romhacking.net/forum/index.php?topic=30725.0
Mario kart would really not be my first choice of game to adapt like that, or if I did when I was done it would be rather different. Kicking control over to AI but leaving the weapons in the hand of a human is one thing (the games already have AI drivers), matching vectors and speeds to predict a collision and firing off an audio cue/rumble not much more, but so much of mario kart is almost a meta game revolving around sight/visuals. If you aspire to play against those with some sight or full sight then even worse.
Basic example being if I have a green shell (fires forwards/direction of cart or backwards, no homing options or auto aim) I might keep it if I see my opponent behind me has a red shell as the green will break it. Also if I see I am coming up for some boxes then I might choose to ditch it in the hope of getting something better.
If I have a star (limited run of invincibility, and will knock over anybody you hit during it, saving that they have a star active as well) I might well save it for a precarious point (which could be any number of things), in the scenario above I might also note my opponent has a star and if they are going to get hit will press it and make it pointless.
This could go on for a while and will end up way too numerous to reasonably do with audio and rumble cues. Most young kids I meet develop such strategies as well in short order so it is not even one of those "mere mortals can still have some fun" scenarios.
It could be stripped back to say red shells (homing missiles basically), stars/shields, and a few others but that, along with no control, would end up a radically different game and one I am not sure would be any fun at all. So few choices made, no great scope for timing/input perfection, not much in the way of other tests of skill and that is basically most of what we play non story games for. Fighting games on the other hand are basically move lists + counters to them you memorise with input as you choose moves accordingly, almost chess with a input accuracy/speed test, and that I can well get to being fun to play even if you can't see things.
There are driving games you can probably get something from (track racing you control speed for, rally driving where the copilot tells you upcoming turns) but Mario Kart is not something I can get to as being doable/meaningful results for this scenario, even in a "so I can still play with the kids or otherwise participate but still place low".