My dad introduced me to Keen, Prince of Persia (and other classics like Doom and Wolfenstein etc.) when I was tiny.
I still recall how he contrasted the comical/arcade-y movement in Keen to the "realistic" movement in PoP. I was 3 or 4 years old, mind. It was great to see this [1] on HN the other day - it led me to this [2] video which kind of served to explain to my dad and I how he got the movement so right. Sorry weird tangent.
Two other games I remember enjoying was The Incredible Machine and Chip's Challenge. TIM was amazing! Must remember to dig that out if I ever have kids.
[1] https://news.ycombinator.com/item?id=32538026 [2] https://www.youtube.com/watch?v=Jbk5qH2-1S8