Walkthrough:

Pick up the food bowl and go right. Give the food bowl to Charlie Brown, wait, and eat the food. Go to the hut, pick up the typewriter, use and give letter to Charlie Brown. Eat cookies and use the cookie jar to catch the frog. Get umbrella, use it to walk under the rain cloud and get ball. Kick the ball onto the river, pick up coin and jump over barrels and ball. Toss the coin into the well. Jump back across and get catapult. Jump back and burst the ballons. Get the pump. Pump up Lucy's paddling pool. Fill pool with hose water, get frog in jar and scare Lucy by letting it loose. Pick up horse and take it to the tree with the kite. Get pump and pump of the horse. Jump on horse to get the kite. Get to the rain cloud with the kite, and give the kite to Charlie Brown. Follow him, pick up the key, use in school lockers. Get blanket and give it to Linus. The End!