To play as Tailsonic, launch WindowsZone, (I recommend when the updater comes up, select all of the boxes) And then when Sonic appears, right-click him, and select Load Player.
After that, it should open File Explorer. Select the file "tailsonic.ini". these types are the only types of player files the game can read.

UPDATE:

To play as CMO, do the same thing with Tailsonic's, except the file is "cmo.ini".

Anyway, if you have any questions, don't ask me, ask the original creator. - Connor Mugaas Offcial

=)

Ignore the top part if you have played already. The updates are the only new things.

UPDATE:

Mega Tailsonic has now been added! *based off of the megamoto sprites*

Now you can see Tailsonic more clearer!

UPDATE:

The second sprite for Metabot is now finished! 1 sprite will be added each version update. (until 3.0)

Update 3.0:

Same instructions.