first off: I've never ever seen the movie. Probably not much room for ideas if you have to stick strictly to the movie, huh?
Anyway, here goes.
1. Slopes.
The flat floor is so boring... why not put some slopes in it? So you could build maps with hills on it. You get slower driving up a slope and faster going down another. And of course you never know what's waiting for you on the other side of the hill...
2. Floor types
There could be different floor types, that could affect the way your bike changes direction or grinds/brakes... for example, a sand pit that slows you down considerably... or an oil field that doesn't let you change direction easily. If you have ever played Enigma, you know what I'm talking about.
3. Powerups
It would be fun if there were powerups randomly appearing on the floor. There would be lots of possibilities, like speed up, longer wall, better brakes, a gun with limited ammunition you can blast your way through walls with, a mine that you can place on a wall while grinding it, and the next one to grind that wall goes boom, a turbo you can use only once for speed up, ...
4. Obstacles
Someone on this forum made a baddass model of some big robot or something. Would be cool to have one of those walking around, tearing down walls and trampling bikes... other static obstacles could be interesting too. I think there is some work in that direction already to get rid of the boring box.
5. Wraparound mode
What would happen if there were no borders, but instead the map wraps just around and around? Not sure if this can be done in 3D...
Something similar could be achieved if instead of a cube rim the cycles could just drive up the cube walls, so you had actually 6 floors to fill (so you can drive on the floor, on the walls, and on the ceiling).
6. Map editor
Well, this one is self-explaining
7. Health bar instead of rubber/crash?
Instead of rubber, you could have a health bar (that does not fill itself back up). This would allow for games that are similar to those popular (?) high rubber servers, without it being abused too much. So everytime you use much rubber, it costs you some health, so you can't do it infinitely.
8. Melee game mode
Instead of having to wait until the round is over, I think it'd be fun if you could just go directly back onto the field. So camping around just to stay alive wouldn't do you any good, you'd actually have to frag as many opponents as possible to win.
9. Top-down (bird's eye) camera
I'd like a top-down view with some extra knick-knacks. First, it should zoom automatically... generally it should show 2/3 of what's in front of me and 1/3 of what's behind me. It should zoom in when I go slow, and zoom out when I go fast.
When there is an enemy approaching and getting close enough, it should zoom out far enough so I can see myself and the enemy.
Plus, there should be a circular graphic on screen showing the direction and distance of all enemies that are not in range of my bird's eye camera yet.
I've seen other games use something like this (can't remember the game name though). I think it'd be similar to the radar I've seen mentioned elsewhere in this forum, but with a bird's eye camera, this radar could be full screen (designating name and distance and direction by just putting the name and distance at the appropriate position on the screen border).
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