Three of the included items have speakers (the amp, the Pocket Piano, and the Kaleidoloop), and each of the three also has an audio out, *but* in each case plugging anything into the audio out automatically disables the speaker.
That means there's no way using only the included equipment to use the Video Scope and Rhythm Scope while simultaneously hearing the associated sounds. Which takes the fun out of it.
I had an amp sitting around that would do the job. Maybe a headphone splitter would work too.
Anyway, that aside, these devices are lots of fun to play with either individually or together.
But you can get started experimenting with piling different sounds on top of each other very quickly, and before you know you'll realize you've been at it for an hour.
In the end I haven't come up with anything I thought was that interesting, but clearly it's possible.
It's a lovely-looking instrument, and the sound is pleasant and clean, but a little boring.
It's fun, at least for a while, to control the sound by waving your hands around in the air.
But after the novelty wore off I lost interest.
You can make warbly swoopy sound effects, but I wasn't able to find much variety there.
You could try to learn to control the pitch and articulation accurately enough to play melodies, and I could see that being a fun challenge, but it would also take a while to really master, and it didn't seem worth it to me for a monophonic instrument without a lot of character to the sound.
But others may find it more inspiring!