Just when you thought the Philly Improv Theater couldn’t get any cooler, they decided to add a puppet improv show to their repertoire.

There’s a cat named Alcatraz, who is perhaps the most desirable cat in the world. Alcatraz and his friends have kicked off a night of comedy, complete with the option to watch the show on screen or on stage. And in case you were wondering, yes, this is the first fully improvised puppet show ever seen in Philadelphia.

While the show includes puppets, these are of the kind that may corrupt your small children. Forewarned is forearmed.

Friends of Alcatraz runs now through September 17 at the Adrienne Theater Main Stage, 2030 Sansom Street. Times vary, $20.

–Christina Snyder