The introduction of blazing fast speed
Also before LAN support in consoles as we know it today, Wipeout was also the originator for Link Cables, which allowed up to 2 players going head long in battle as your dodging mines and missles, all the while trying to make those seemingly impossible hair pin turns.
If you can find this in a bargain bin at some Gamestop or EB games, pick it up and experience what most of us felt was pure fun.
Old School Classic