ANSIMation
From Just Solve the File Format Problem
ANSI Animation, or ANSIMation (also capitalized as ANSiMation, ANSImation, Ansimation), is the practice of using ANSI escape codes, in conjunction with some timing mechanism (such as processing a fixed number of bytes per second), to create animated character graphics. It is essentially the animated form of ANSI Art.
A variant of it called VT100 Animation specifically targets VT100 terminals.
ANSIMation data might be stored in a file, or it might be transmitted in realtime by a server (e.g. a telnet server).
