First of all, the two headed thing is a guy.

Next will be Kiba/Aku against the chick, 2-Heads going on with the barrel, chased by Shika and Naruto.

Remember 2-Heads can split his body (read the leaf ambush, the second head disappeared and shortly afterwards the kunai forced Shika out of Kage-Mane). So we have a 2vs2 with double-sound on one side and Strategy-Shika + Power-Naruto on the other.

The tinned moron will stay where he belongs -> inside the tin. Maybe he slips out after all Sounds are dead and the seal crumbles, but then he could die from the pill. So the tin will be a good tin and stay a tin and they will take it back to Tsunade.