I remember playing Silent Hill for the first time on the PlayStation and it reminded me of the Elementary School which is the earlier portion of the game. There so many small and creepy moments that ramps up the tension. It gets even scarier when the you enter the twisted version of the school.
When I was a little kid I played that Scooby Doo flash game of solving a mystery, then there was a junpscare that freaked the hell outta me