RARE Black Bat Furby

RARE Black Bat Furby, this is a very rare black bat furby... however, the inside battery terminals are corroded and I do not know how to clean them, currently when putting batteries in the Furby it does not turn on. This would be a steal for someone that knew how to clean terminals and was handy with electronics as they could probably get it working again and it seems the issue is the corrosion. Open to all offers