1 qt. (4 cups) boiling water, divided
2 pkg. (3 oz. each) JELL-O Berry Blue Flavor Gelatin
2 pkg. (3 oz. each) JELL-O Gelatin, any red flavor
3 cups cold water, divided
1 pkg. (3 oz.) JELL-O Lemon Flavor Gelatin
1 tub (8 oz.) COOL WHIP Whipped Topping, thawed