Sweet Tooth is a thinking mans character....you can't just mash buttons and get away with it......mine setups are a MUST with him....it has saved my life sooooo many times......use his fire breath for spacing and also anti-air......combine that with his molotovs and you will be surprised on how much AP you get.
Lv1 Super: The best time to use it is when any opponent whiffs (misses) a move....activate BEFORE they recover for a move....also when a crowd of people are not paying attention to you and someone is doing a combo on another player
Lv2 Super: The best way to do this is when you are in a crowd of opponents......the invicibility will save you from getting knocked out of it.....dont do it halfway across the screen cause people will see it coming and you are leaving yourself open for attack......I get double and triple kills all the time from this tactic
Epic Moment: I had a 1v1 against kratos and he was chasing me, I dropped a mine and he jumped over it....activated my Lv2, he ran away but the mine popped him up right into the missle...BEST. MOMENT. EVER!!!!!
Lv3 Super: Before you activate go against the wall opposite of your opponets then activate it.....the closer they are to you the better chance they have of dodging it.
I hope this helps someone out