Well not something I would do haha but its still an epic video!
So if you unsure what a launchpad is the best way to explain it is you plug that unit shown in the above video into your computers usb port and open up your preferred program (Can also be used with tablets). I use Ableton live. You can the load up and play up to 8 songs or sounds at once.
Anyways I have found it quite hard to use but I am only learning. My unit is called Lauchpad mini which is much smaller in size but is still fun to use.
Checkout how sick this dude is at using a Launchpad while enjoying shapes!