Twister Demo Disk

First version (V.1.00) of the small demo with 15 fps can be downloaded as a DSK-image.
Second version (V.1.10) with speed optimisations of the small demo with 30 fps can be downloaded as a DSK-image.
Second version (V.1.10) without VBLANK-evaluation for Apple ][/][+ computers: DSK-image.