I'm at the final level of the game, where Dr. Wily awaits! Of course, before I can actually fight him, I must face all 8 of his Robot Masters again, and I made sure to do it in the exact same order that I did the first time around in this playthrough with the added bonus of having the first and fifth one's weakness:
1st: Clown Man; Weak to Tornado Hold
2nd: Grenade Man; Weak to Thunder Claw
3rd: Frost Man; Weak to Flash Bomb
4th: Tengu Man; Weak to Ice Wave
5th: Sword Man; Weak to Water Balloon
6th: Search Man; Weak to Flame Sword
7th: Astro Man; Weak to Homing Sniper
8th: Aqua Man; Weak to Astro Crush
You get a big health pickup for each Robot Master you beat, here, just to keep you pumped for the next one you face.
Beat all of them to activate the elevator in the middle of the room, taking you upwards to have your 8th final showdown against Wily!