Old school feel...
This game reminded me a bit of simplified version of the SNES 'Megaman X'. I think its the music that really gives it that touch.
My only complaint is the "cheap" jump at the end of part '[1_8]'. To reach the exit, the player "floats" by holding the jump button and dragging his forehead across the ceiling. Seems like a cheap thing to do in a series thats got a lot of potential.
Another thing to consider perhaps is bringing about a quicker difficulty curve. I didn't find the game much of a challenge till at least part '[1_10]'. Of course, the game is enjoyable from start to finish, but when presented with an obstacle to tackle, the fun shoots up exponentially.
All in all though, thanks for adding this gem to the library of flash games on Newgrounds.
I look forward to future episodes.