The original Mega Man is represented here by Elec Man. But for now, let's focus on these little robots that are summoning forth the past, and deal with them as best we can. The next room has representation from 4, 5 and 6, and the final room has representation from - you guessed it - 7, 8 and 9. This first room has representation from Mega Man 1, 2 and 3. Instead of focusing solely on a single game (like Mega Man 9, for instance), the designers of Mega Man 10 thought it would be a lot more fun to have a single Robot Master from each of the nine previous core Mega Man titles make an appearance. Mega Man 3's Dark Man summoned forth all of Mega Man 2's Robot Masters, but this time around, things are a little more clever. Much like the "Dark Man" robots from Mega Man 3, the archive computers here will summon forth Robot Masters from games past. Wily's Weapons Archive, and each of the three boss lairs you'll encounter here are the ultimate piece of fan service. You may be surprised to run into a boss lair almost immediately upon beginning the stage, but that's all part of the design here. And yes - Slash Man and Frost Man have all-new, redrawn 8-bit sprites (as they hail from a 16-bit and 32-bit game, respectively). And in the third and final lair, you'll deal with Slash Man (Mega Man 7), Frost Man (Mega Man 8), and Tornado Man (Mega Man 9).
In the second lair, you'll face off with Ring Man (Mega Man 4), Napalm Man (Mega Man 5), and Flame Man (Mega Man 6). In the first lair, you'll fight Elec Man (Mega Man), Wood Man (Mega Man 2), and Gemini Man (Mega Man 3). Wily's castle, the Archives are a computer system that hold the powers and abilities of Robot Masters from the Mega Man games of yore. Fought on three separate occasions during your run through the initial stage of Dr. And Mega Man 10 has an even bigger piece of fan-service that only the truest of Mega Man fans will appreciate - the Archives.
Why is this important? Because Capcom released Mega Man 9 and 10 to please their old-school fans. Indeed, 1994 marked the date Mega Man 6 was released, one of the last NES games sold in the United States, and the last time before 2008 that we saw an 8-bit Mega Man title. Mega Man 9 and Mega Man 10 are made in the 8-bit aesthetic that was popular with the NES from 1985 until about 1994.