After purchasing, you will be able to download a .zip file with the game contents. Unzip it and run the install executable within the folder. The game will install.

After installing you have to move the pizzaland folder from program files(x86) to the normal program files folder for it to load!

Make sure to go to properties -> Compatibility and set compatibility mode for Windows XP service pack 3

If you do not do this you will not have cutscenes, which are required for the speedrun.

EDIT 1/31/2025: This is may be obsolete as the game is available on Steam now. This may prove useful for some so I'll leave it up.