LeKukie figured a way to use analog sticks (and also tools most of the time) to perform zip-zag (not to be confused with zig-zag which is what we all know and love and is used in most crash 1-3 runs) RTA. This tech is used mostly just in TAS and requires alternating opposite directions every frame, and getting the analog messed up with a tool like a rubber band makes it "viable" since you only need to get that fast mashing on the dpad.

However, Crash 1 does not natively support analog and the only way to "use" it is by using certain controllers (mostly third party) that can map d-pad to analog.

Therefore, zip-zagging will be banned for Crash 1 RTA speedruns due to the game not having the "analog" you need for it natively supported. The use of controllers that can map d-pad to analog will still be allowed for use in this game, but not for zip-zagging because that is the only thing the controller provides a stupid advantage for which should not be usually possible within the game.