 If you liked
Tatamp
|
 ...then you might like
Direct Animation
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While Tatamp has more fine details than Direct Animation's seeming fingerpaintings, both of these works are essentially colored blobs and lines moving around the screen. No story to speak of, just pretty art that moves. I'd suggest watching these two, and any other Mirai work, with a finger on the pause button to stop and examine the art more closely, and maybe take a few screenshots for computer wallpaper.