What, Minor is around again?!? Great! <img src="smileys/smiley17.gif" border="0" align="middle" />
I remember that project quite fondly.
To me it seemed that your C2 version needs some movement tweaking. More acceleration/deceleration, for a more direct response to the player's key presses. Also I think the jumping is too "vertical", if that makes sense.
It's generally a little tricky to get the C2 Platform behavior to act exactly like it did with CC. Also there's no jump sustain so far. Well, you'll figure it out.