Dissolve red and lime Jell-O in separate bowls according to package. directions. Pour red Jell in oblong pan. Dissolve lemon and marshmallows in 1 3/4 cup hot water. Set in refrigerator until it starts to set. Have ready to add pineapple, cream cheese, and whipped cream. Mix together and add to Jell-O. Let set until almost firm. Pour over set red Jell-O. When set add jelled to lime Jell-O.