At first I wasn't sure if I was completely sold, but nah, this is actually really good, hell I like it more than 1 and 3. I think what makes this game stand out compared to its others (even 2) is its content. We have eight Robot Masters, four Cossack Citadel stages, and four Wily Castle stages for a grand total of sixteen levels. The best part is, none of these levels overstay their welcome, which is something I can't say for something like Mega Man 3 where they reuse four level maps and aesthetics for rematches of Mega Man 2 bosses that felt more annoying to play. The weapon catalogue also feels a lot better this time around, with most weapons feeling good to play while the niche ones are used well for when they're needed. By the final boss, I had most of the weapons completely depleted but was still able to finish the game. The only issues I had were with the final bosses, Wily Machine 4 and Wily Capsule. Wily Machine 4 has a horrid hitbox in the second phase that made fighting it so much worse than it really should've been. Wily Capsule is definitely not as bad but I just don't like that you can't hit it with the Mega Buster especially since the refills come before the boss rush and due to the Robot Master weaknesses, you really need a lot of ammo. Other than that though, pretty good level design, great weapon choices, solid bosses, and a larger amount of content that doesn't overstay it's welcome. Overall, I'd say this game has a lot of great qualities that prevent the series from getting boring to me playing these back to back, and I'll be looking forward to the next one.