Reversed battery by accident in Aqua Puss - help needed

I mis-wired a battery clip to power the AquaPuss build. I simply wired a plug to a 9v batt. and mistakenly put + on tip.
The board was complete with transistors and all other parts but no chips. I got a dead short and didn't notice it until the battery got quite hot.
So I finally figured out what I did and corrected the battery polarity. Problem is I still have a short and battery still gets hot.
Any idea which parts might have likely failed so I can narrow things down?
Thanks.
Oh, also I have checked and rechecked several times for mis-wiring, stray solder, incorrect polarity of caps, diodes, etc. All lots correct and clean.
TB
The board was complete with transistors and all other parts but no chips. I got a dead short and didn't notice it until the battery got quite hot.
So I finally figured out what I did and corrected the battery polarity. Problem is I still have a short and battery still gets hot.
Any idea which parts might have likely failed so I can narrow things down?
Thanks.
Oh, also I have checked and rechecked several times for mis-wiring, stray solder, incorrect polarity of caps, diodes, etc. All lots correct and clean.
TB