Another fun thing about Parachute Parapanic is the hand drawn graphics. The entire game consists of stick figure drawings laid over a sheet of old school graph paper. Some may find the graphics a bit bland and oversimplified but I think it's a perfect match for the casual and simple gaming experience you are in for.
The FDG Entertainment website list "Catchy Music" as one of the features of the game. While I would not exactly call it catchy, it can be entertaining and the sound effects make game play a little more enjoyable. I personally either play the game on mute or listen to music from the native iPod App. So I will leave it up to you decide if the music is catchy but being able to listen to your own music during game play is a big plus.