Stereotypical frat member

Nintendo character who hatches from an egg

Descartes who said "I think, therefore I am"

Backdrops in "Teenage Mutant Ninja Turtles" films

Security test to prove you're not a robot

First Canadian M.L.B. team

Hedgehog of video games

System of modified spellings used on the internet

Confined, like the letters in this puzzle