Peanut Butter-Banana-Chocolate Train Wreck

Cut cake into 1 - 1 1/2 squares.
Set aside.
Beat the sugar, cream cheese, and peanut butter together in medium bowl until creamy and smooth.
Fold in 6 oz of Cool Whip.
(Reserve last 2 oz to use as topping.
).
Slice 2 of the bananas in approximately 1/4 inch slices.
(Reserve third banana.
).
Please note: Amounts of each ingredient will depend on the type of glass or bowl you choose.
I used a parfait glass that was about 3 1/2 inches in diameter (top) and about 4 inches high.
To assemble your train wrecks, press each layer in firmly to compact.
Press 3-4 pieces of cake in bottom of parfait glass.
Top with 3-4 slices of banana.
Squirt enough chocolate sauce to cover the bananas.
Add 1/4 c of the peanut butter mixture.
Repeat layers until the parfait glass is almost full.
(I repeated my layers three complete times, so that the peanut butter mixture was on top.
).
Repeat, filling other parfait glasses.
Cover with plastic wrap and refrigerate for 2 - 3 hours.
Right before serving, slice reserved banana into approximately 1/4 inch slices.
Remove train wrecks from fridge and top with a plop of the reserved whipped topping, 2-3 slices of banana and a chunk of chocolate cake.
For the risk-takers in your life: Top with additional chocolate syrup!
Enjoy!