You know, I'm going to have to add Mega Water S the way everyone keeps telling me that I forgot him! Maybe early next year, once I actually get some free time (and find a decent place to put him - the pic is pretty crowded as it is).
And that's exactly why I didn't include him. He would be in a poster with Bomb Man, Crash Man, Grenade Man, Commando Man, etc. You could almost make a Pokemon-style game, using the bosses' themes as types (ice, fire, water and rock are certainly covered).
I had an idea to my game: Since Sonic characters can't stand underwater for long as mega man, Bubble lead can save your partners life(Bubble man's stage has places, which blows air at water or something that way). Anyway, just what i waited, sadly, colored already