Question

The only one I know is the fossilized Kabutops.

Answer 1

http://bulbapedia.bulbagarden.net/wiki/Missingno. This is the page thats about missingno. but its basically just a glitch static thing that goes like a square then a rectangle to the left hand side going up (not very descriptive but you can go to the link and missingno normal is the first one on the pic)