Cocoa Loco is a simple but challenging game that celebrates the best cold-weather treat ever -- hot chocolate. Pit your skills against …the marshmallow! Your field of battle is a cup of hot cocoa, just like the kind you enjoy at the Toledo Zoo’s Winter Weekends, now through the end of February. As each marshmallow pops above the surface, tap it to dunk it. The longer you go, the tougher it gets. Have fun!