Well, if Giga is going to show off his first level, then I'm going to show off the improvements I made to Pirate Man and Ground Man's levels. :p
http://www.kraftfam.org/~dtk/incomplete_rockman_run.zip
Re-doing the levels cut about 200 frames off the time. Around 117 frames came from Pirate Man's level(including a 3-frame improvement on the boss fight) and around 80 frames came from Ground Man's level(14 frames improved on the boss fight).
One thing I would like to note about the fight against Ground Man: I'm well aware that by starting off with a fully charged shot, I end up needing an extra shot to finish him off.
However, if I didn't start off with a charged shot, he would've started off transforming into the spiked car, which I have no way of preventing. I didn't try hitting him with a Remote Mine ASAP, as the explosion would've been low and wouldn't prevent him from going into the ceiling.
I might try seeing what happens if I enter the room one frame later or something.