All I can do with this video is just laugh out loud. I mean, everyone who plays Mario games knows to face boos to stop them from moving. Personally, I dread levels with these guys because its a pain to avoid.
Why do boos hide their faces and stop when you look at them? Well, Dorkly Bits has done another clever twist to solve this riddle, and it's just plain funny.
I'm not really sure how green is more frightening than red though...what if one of them is color blind?