The Steam version is really, REALLY good. There're Additional mode and stuff beside the main game we probably had our teastment quite long times ago. The added sub-title is good but the color of subtitle would sometimes out of place when buried in background.
Gold Castle 1 stage BGM is still awesome after all these time.
Click to know about the Additional mode↓
Additional mode is a high-speed and polished version of Mega Man 3's player-2 debug function (With debug dip switch connected to Invincibility/lives!)
It's speedy and It's awesome.
With Invincibility turned on You can glitch out of bound from lots of place and it's abyss unlike Castlevania.
Important to know about: Controller
Recommend Controller is SNES-style USB game pad controller/PS1 classic controller (without analog stick). Modern controller (XBOX ONE/PS4 game pad) would recognize left stick as direction and It's Hazard. I used the same setup used to deal with Haunted Castle 3, Mega Man X3/X4/X5 PC version, Lecarde Chronicles 1 and Lecarde Chronicles 2 demo.
(The standard 8-10 key game pad without joystick)
If you are capable to use keyboard for every single game then this game is yours. And the decision is yours.
Oh my God. The steam version even has a Mega Man 2-style easy mode which also increased maximum capability of lives and Cross tanks to 30! And an extra mode that will turn Schwer-muta stage to its prototype design (persumably)
The easy mode code is The konami code. And the ex-Schwer-muta stage code is The Ultimate armor code in Mega Man X6.