Okay, I had a game when I was younger. It was most likely a Genesis game. What the game is, you're a knight and one of the first things you do is climb up the side of a mountain jumping ledge to ledge to find a golden egg and then take that golden egg up to the eagle at the top of the mountain, so it will fly you to the next level. Also, it seems as if later on in the game, you can get a spout spell that makes a spout of water lift you very high and in one forest board, you need it to get into a store that's high in a tree.