Mega Man 4 - Square Machine (Cossack Castle Stage 2 boss) buster only, no damage

Here we have the Square Machine from MM4's Cossack 2. Honestly, I thought this one would be harder, but it was nothing special. After enough of practicing, it was just a few attempts. And even that was only because I wanted the fastest pattern (3x9HP in the first 3 loops, then 1 last HP on the 4th loop), otherwise it'd be just 1 video.
The boss itself doesn't need some special explanation and description, it's pretty simple to figure out how it works.
There are many more Mega Man videos at my channel, feel free to check them out.