Custom Mega Man Boss

[Novally]

Could you be more specific? That doesn't really help at all.

Of course this is pure opinion and preference. I honestly do not fully know how NES sprites function yet. This might violate some pixel limit or somthing (I really do not know).

This could also go against character design, but it honestly looks less clunky if you did the portions this way.

Also, there is nothing wrong with using the line too (if you did use it of course). I was just showing you what I used, not that one tool is superior to the other.