scrolly

1. especiallyinformalnot comparableScrolling.

   Although this title probably isn't quite as tight in the gameplay department, it does have a brilliant title screen complete with a demo scene style scrolly message […]

   2017, Kieren Hawken, The A-Z of Atari ST Games: Volume 1

plural scrollies

1. computingA scrolling message, especially one used in a demo to convey news, commentary, greetings, etc.

   In a distant land far far away, in an ancient time when the trees still talked, people were in awe over a sine scrolly that bumped before and after a few pillars.

   1999, Ignace Saenen, “Demoscene life/death... [Was: Hi to all demofreaks!]”, in comp.sys.ibm.pc.demos (Usenet)

   Synonyms: scroller