Spread half of the crushed wafers in the bottom of a greased (or Pam sprayed) 8 inch square pan. Prepare pudding mix according to package directions. Spoon hot pudding over crumbs. Slice one banana; place over pudding. Top with remaining crumbs. Chill for 1 hour. Meanwhile, prepare gelatin according to package directions; chill for 30 minutes or until partially set. Pour over crumbs. Slice the remaining banana and place over gelatin. Spread whipped topping over all. Chill for 2 hours.
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