Ghostlike mushrule

Why does that snail look like its jumping on them in a platforming game?

I believe they are called Ghost Pipes

Looks like they might be coprinellus disseminatus or "fairy ink caps" but I'm not an expert and it's hard to be sure without knowing more information like where you found them (region/what they were growing on) and what the gills look like.

Inky caps are generally considered "conditionally edible" because they contain a chemical which reacts with alcohol and becomes poisonous. It's recommended to abstain from drinking for three days before and after eating them. Fairy ink caps are crumbly and generally not considered worth eating even by those who enjoy inky caps.