I noticed that the all cars all cups category is listed as %100 and says you must "acquire all the cars in the game by picking up the hidden cars on each track.". My problem is that not all the cars in the game are unlocked by being picked up on the track. Some cars, such as the twin mills, must be unlocked by beating the cups. The cups are mandatory for this category anyway, but one car that isn't unlocked by picking it up on the track or by beating a cup is the tow jam. The tow jam is only unlocked by entering the code "TWJM". The tow jam is also not listed as being one of the necessary cars to unlock, even though it's stated that this category is %100 completion and that you must collect every car. I'm just a little confused about the category rules.

I believe it's picking up all Mystery Car pickups, and winning All Cups. You can unlock all cars by beating the Twinmill Cup anyway, but this is not the way the category intends or it would be no different to All Cups.

I believe on the N64 version, Tow Jam is unlocked by winning the Twinmill Cup. However this is not he case on the PS1 version, so it may be important to add this to the rules to specify whether the TWJM password is required for PS1 runs.