I'm so bad at spotting the anomalies, but I'm super glad I found my way into the satanic cat shrine, that was fun. Definitely had a better experience with the downloaded version vs the webgl one -- definitely hard to get all the effects ported. I also had more fun when I finally clicked I was supposed to be shooting the loop entity and it was different than the more passive guys.
There was also some blue tint on the web version (I think it was an overlay from the instructions??) that hurt the atmosphere and it all made sense when I checked the windows one and it was gone.