Show Weird Things You Have Seen Before

Youss

I'm sure lots of you found many weird things like Easter eggs in games or glitches,
Show some weird things that you have seen before, I will start

scorto7

that screenshot doesn't really show what is weird

Pickles2001

Shouldnt this go in off topic .-.

Rawskin

So when I zoom in the bottom left corner I can see only white stuff, I don't know why
It looks like this: