(There's no video for Psychedelia yet. Please contribute to MR and add a video now!)
Psychedelia lets you choose a pattern and lets you move the mouse across the screen. The pattern animates in B&W around your cursor's position.
Psychedelia 1.4 comes with 13 animated patterns.
Psychedelia-1-4.sit (6.99 KiB / 7.15 KB)
Psychedelia v1.4 / compressed w/ Stuffit
Mac OS 1.x - Mac OS 9.2.2
Note: Altough it runs just fine under System 7 and above, running this under System 6 and below is recommended, because whenever you click the mouse to exit the animation under System 7 and above, it switches back to the Finder, effectively putting the Psychedelia app in the background, which is annoying.
Emulating this? It should run fine under: Mini vMac