Squarey Monster 7 (Cantankesaurus)

I swear, I'm not feeling grumpy today, and no cantankerous person crossed me. Just felt like making a grumpy dinosaur that messes up your stuff. Meet the only known Cantankesaurus:

Nobody knows this grumpy thing’s name. Its scientific identification is Cantankesaurus because it’s always in a bad mood. It’s a good idea to avoid this Squarey Monster. It can’t be bargained with. It can’t be reasoned with. It absolutely will not stop until it makes a mess of your room.