Korg Volca Drum

You will need to invest a bit of time to learn the interface and the button combos. Once you have all that underway you can actually perform with this little device.
I bought it as a very high class metronome basically. I thought I'll programs some beats and then play over them to practice. Now I see there is a live performance factor to this that you don't want to out it down and pick up a bass or anything. It will keep you entertained for hours sculpting sounds and rhythms.
Build is great. People are complaining about the small interface. And the micro adjustments being a problem but the micro increments are what gives it that insane sound when sweeping the pitch from low to high while also increasing the release of on the the parameters will give you other worldly sounds that if the knobs were clickable or had less micro increments you would miss out on.

I could talk for hours about this but for 130 euro or there or there abouts it's well worth buying and seeing for yourself!

Everyone have his/hers favourite volca, for me it is the Drum.

1. You can use it as a standard drum machine for a simple setup

or

2. You can fiddle with every sound (there are 6 parts), in many, many ways. If you know even a bit about analog synthesis - this will be a fun process. After you will arrive at the set of 6, you can than sequence them and save your preset. And than - you can chain patterns!

The waveguide effect is something interesting. Not very easy to use, it can be a bit unpredictable at the beggining, but - well - you can arrive at interesting delay/repeat/echo effects with it.