Any children aged 6 to 8 years old and his/her parent or guardian who is aged 18 or above are eligible to compete this family challenge on Chater Road.A minimum donation amount of HK$500 is required for the participation of each family team. Adult Rats (Parent/Guardian) and Kid Rats (Children) will help each other dress up in creative Rat costumes and the quickest pair to complete the task will win.