reddit.com/r/lostmedia/comments/vl0qi8/fullylost_lost_pikachu_screamer_applications/
(post about the screamer)
web.archive.org/web/20010626101028/user.chollian.net/chkno1/image/ghost.exe
(download url)
WARNING! The following application contains a screamer and flashing images at risk of seizures!
windows defender detects it as malware.
op remembered that the Pokemon featured in this screamer was a jigglypuff, but in reality several Pokemon blink alternately.