Sonic Adventure reviewer complains about the dark mirror room in Lost World that has broken lighting on literally every port other than the original Dreamcast version
https://youtu.be/b4HT-JuEraI?&t=2928He's unaware of this, and thinks the mirrors are pointless because they do nothing beneficial (you can already see everything due to the broken lighting)
Illbleed reviewer originally thinks this graphical glitch was an emulator bug (he was correct), then decided it was intended/accurate. While yes obviously it's part of the character model, that clipping is an emulator bug and it's fixed by the "per-pixel alpha sorting" option.
https://youtu.be/xMZ5t3MkJXU?&t=271