GRANDPA

you must find your friend and come back home, but grandpa will stop you

granpa can't see you in the light, you friend hide in the city and you must rescue and come back home.

easy= you are notified when you are in dangerous places and safe places

normal= granpa runs faster, you are no notified, speed when you find your friend x2

hard= granpa runs faster speed when you find your friend x3