Blobun gets great mileage out of its simple formula, while remaining the perfect game for casual play. Like, it really perfectly fits into that position. I think it deserves the honorary distinction of being the first PC game I've beaten on an airplane. Each world introduces a set of new mechanics, with just enough of a dichotomy between them to make it easy to remember how they operate. Features like a button to undo mistakes, colorblind-friendly graphics and the choice of mouse or keyboard movement are there to ensure comfort, while the options to get a hint and/or skip the stage are there if you want them. Plus there's lesbians.