Fuck this is old.
This is made by minus8, famous for making those "rhythm flashes" that are becoming popular, the most popular being ppppu.swf, which can be found here: https://7chan.org/fl/src/ppppu.swf
He's done plenty of other ones. Some are comical (like OP's, and this one), some are semi-serious, but some are fucking gay.
"Holding anger is a poison. It eats you from inside. We think that hating is a weapon that attacks the person who harmed us. But hatred is a curved blade. And the harms we do, we do to ourselves."-Mitch Albom