I was a bit confused at first, but after clicking the mouse and seeing those beautifully glowing blocks, along with the score numbers constantly ticking up after connecting them, I just couldn't help but fill the entire screen.
It would be amazing to have some music or sfx, or maybe adding some witty little flavor texts that pop up whenever your score-per-second reaches certain milestones—that would definitely put a smile on players' faces. Very on-theme submission!