P8.GL35.SDK is a ShrinkIt disk archive of a ProDOS 3.5 (self-booting) disk that
has a binary game launch menu with some selected popular old Apple II games
included.  You can use this ProDOS Game Launch (self-booting disk) as an example
disk to make your own custom ProDOS 3.5 game launch disks to your own
specifications if you wish.