Here is the full list of all 34 The American Dream trophies - there are 20 bronze, 7 silver, 6 gold and 1 platinum.
(Chapter 12) Hit yourself in the head with toilet paper
Experienced the fake ending
(Chapter 22) Witness the dawn of the Second American Revolution
(Chapter 21) Blow up 20 cars
(Chapter 19) Shoot a fish in mid-air
(Chapter 17) Eat the entire stack of waffles
(Chapter 18) Keep checking records even after given the option to Give Up
Shoot half the hidden stars
(Chapter 16) Ensure all daisies survive til the end of the stage
Manually eject and reload your gun 100 times
(Chapter 14) Complete the stage without letting a single rat dough through
Reach the Intermission
Pump the shotgun 10 times without shooting
(Chapter 11) Learn how babies are made
Eat 30 pieces of food
Shoot 1000 bullets
(Chapter 8) Out-dance Rex George
(Chapter 7) Earn at least $5.00
Make a milkshake
Shoot 1 hidden star
(Chapter 1) Begin your journey into The American Dream
Thanks for playing! Love, Samurai Punk <3
(Chapter 3) Shoot the down the ducks with 100% accuracy
(Chapter 4) Catch the fast ball with your face
(Chapter 5) Change your mind about which one of the twins you like
(Chapter 6) Shoot down 5 pins from the back row in the shooting game
(Chapter 9) Defeat the hose without getting hit by any bolts
(Chapter 10) Eat at least 4 maggots from the cheese
(Chapter 13) Listen to all of Rex's objection before shooting him
(Chapter 15) Shoot 15 beer cans into the trash can
(Chapter 20) Complete the stage without a single civilian casualty
Experienced the true ending
Buy 50 Guns
Shoot all 48 hidden stars