Tangentially related: IIRC, the demo disc version of one of the PS2 Metal Gear Solid games had a small texture sitting in VRAM that just contained the url http://konami.co.jp/xxx/
If you visited the url, it was just a hit counter. I found out about it on Sony's PS2 registered developer forum. Someone had put the disc through the PS2 "Performance Analyzer"[1] and had a peek at the VRAM. When I hit it site it was in the low hundreds. A few months later it was in the low thousands. A few months after that it was gone. konami.co.jp apparently isn't even a thing anymore.
If you visited the url, it was just a hit counter. I found out about it on Sony's PS2 registered developer forum. Someone had put the disc through the PS2 "Performance Analyzer"[1] and had a peek at the VRAM. When I hit it site it was in the low hundreds. A few months later it was in the low thousands. A few months after that it was gone. konami.co.jp apparently isn't even a thing anymore.
[1]http://lukasz.dk/mirror/research-scea/research/pdfs/GDC2003_...