Yep, it comes packaged with a cardboard back. Interesting that they did that.
Here's some more info about the writing on the cassette. The tape is called "Saturday Morning Cartoons' Greatest Hits Sampler." Features the following tracks:
Ramones: "Spider-Man" (That's the good song!)
Matthew Sweet: "Scooby Doo, Where are you?" (Actually, I've heard this version, it's pretty cool.)
Sublime; "Hong Kong Phooey"
Reverend Horton Heat: "Stop that Pigeon"
Behind the tape, you can see a coupon for $2 off the full "Saturday Morning Cartoons" album at any long-defunct Camelot Music store. (And the coupon expired in '96.)