In a bowl, mix wafer crumbs, melted butter and sugar; press onto bottom of a 13x9-in. dish. Freeze 15 minutes., Spread chocolate chip ice cream over crust. Layer with bananas and 1-1/2 jars fudge topping (about 1-1/2 cups). Freeze, covered, at least 30 minutes., Spread strawberry or cherry ice cream over top. Freeze, covered, 6 hours or overnight., Remove from freezer 10 minutes before cutting. Warm remaining fudge topping; drizzle over top. Serve with toppings as desired.