Developed by Penguin DT for Windows XP and Vista, TAGAP: The Apocalyptic Game About Penguins is a freeware game where you play the part of Pablo, a cyber-penguin used in vile drug experiments and who’s had enough of being guinea pig for Dr. Glowenko. Dr. Glowenko is a mad scientist who succeeded to connect living brain into a computer with the aid of his designdrug, TAGAP (Tissue-Augmenting, Green, Addictive Pill). Your task is to kill everything and locate the exit. Keep doing this until you face the big boss and nail it to win the game.
In the zip there is the .exe to run the game on Win98 WinMe too.