About PEGI 7
Game content with scenes or sounds that can possibly be frightening to younger children should fall in this category. Very mild forms of violence (implied, non-detailed, or non-realistic violence) are acceptable for a game with a PEGI 7 rating.
About the PEGI system
PEGI is the Pan-European Game Information System, a video game classification system in Europe. It is used in 36 European countries.