The Sesame Street Martians made a soundboard? Yip-yip-yip, uh-huh! Encounter this definitive collection of everything the Martians have learned to say while on Earth. Whether it’s “Yip,” “Nope,” or “Pass the salt,” earthlings can let Martians do the talking. Take a behind the scenes peek at the recording session for this app:

Free for a limited time, get it here!