It's the same pattern every time for his re-assembling, once you have that down it's not too hard tbh. Make sure you have Thunder Beam cos it's only 7 shots, as opposed to other weapons taking 14. Will save you a lot of headache.

I've beat this Yellow Devil several times WITHOUT the glitch. That's what happens when you play the Anniversary Collection.

Done it before. Now I just need to beat him legit.

Wait, hold up, what is this glitch? o.o and what does it do?

I don't use the pause glitch here. but there is one boss in Mega Man 2 where I need the pause glitch to survive.

I've gotten used to Yellow Devil over the years, but as a kid, the pause trick was my saving grace.

I never used the trick before. I had trouble at the beginning, but I got good at beating him not long after. I now think he's easier in Mega Man than he is in Mega Man 3 because he doesn't have that cascade attack in MM1.

For most people, like me, the game is impossible without this trick.

Best trick in the game, it can be used on other robot masters too if don't quickly enough!

Probably the only reason I was able to beat the Yellow Devil, sad to say.