Fun Comes First. Let your baby monkey around in the Monkey Business Musical Activity Gym featuring 20 minutes of music and lots of monkey fun. This play gym features a jungle-themed mat that provides a softer surface for playtime. Capture baby’s imagination with more than 20 minutes of monkey business melodies, plush toys, rattle, and the baby safe mirror that all detach for fun on the go. When things get a little messy, simply remove the toy bars and toss the play mat into the washing machine.