There have been many contributors over the last 4 years, I've always considered this as a team project.
I would be in favour of submitting the final result in the name of everyone who contributed in this thread.
I have only done the bare minimum with the boss battles and no movements during the score tallies, if Hat wants to do this part, I'm totally fine with it.
[URL=
http://dehacked.2y.net/microstorage.php/info/1967487883/k-mc1-nr.gmv]Mystic Cave 1 in 0:27::41[/url]
[URL=
http://dehacked.2y.net/microstorage.php/info/521032637/k-mc2-nr.gmv]Mystic Cave 2 in 0:33::15[/url]
There's an oddity with the boss battle, I managed to save a couple of frames on the last hit, only to find out that I lost some frames o.O
It turns out that you have to deliver the last hit when Robotnik is on a specific y-value, on this value his wobbling seems to take the shortest time, so he retreats quicker. Interestingly, this was known and used in the Sonic 2 TAS, but not mentioned in the submission text.