Need to replace battery in Zizzle IZ - Grandson got in Happy Meal in 2006. He LOVED this toy, played with it for about a year, then got into other "fads". Nevertheless I put it away and actually forgot about it until cleaning out a closet recently & ran across it with some of his other "keepsake" toys. Anyway, any help in replacing the now dead battery would be appreciated. Thanks.

Toys - Zizzle