the Wolfenstein3D-like game in only a few hundred bytes WITH SOUND might be even more impressive even though it's like exploits all the way down
oddly can't find a link to it at the moment
Not sure if this is what you were thinking about, but .kkrieger was 96 kB and looked very impressive when it was released: https://www.pouet.net/prod.php?which=12036
Not sure if this is what you were thinking about, but .kkrieger was 96 kB and looked very impressive when it was released: https://www.pouet.net/prod.php?which=12036