Bloop is a simple, one button game, using space. Press "set" button on Makey Makey GO to change to SPACE. Basically, press space when the pink disc is approximately the same size as the white disc. You have a margin of error. The pink disc turns green when it is within the margin of error. In summary, press space when the disc turns green to advance a level. Now for the tricky part. The disc gets bigger, faster, as you advance levels. There are eighteen levels in total. But it's improbable that you will get there. Happy blooping :)
Copied from Jacko-Wacko but modified to have levels start automatically for better mouse free play