If you prefer to watch the videos instead of reading the guide, feel free to do so. There is a playlist for all trophies and all collectibles (including a bonus video for all photo filters) on my YouTube channel. If you like and subscribe, it would mean a lot to this channel!
Top Secret Snack
Collect the first golden acorn.
In the opening sequence of the game, you collect the first golden acorn to progress the story. To do this, activate all the buttons in the room, then head to the central platform to devour the giant acorn.
Superhero Landing
Perform a superhero landing when falling from a great height.
To execute a superhero landing, jump or fall from a great height and press the jump button right before hitting the ground. If you've done it right, the squirrel makes a certain noise and lands in slow motion
Reach For The Sky!
Hold up a citizen.
Grab a gun and hold the aim button while facing a citizen to initiate a holdup. NPCs held at gunpoint will drop their acorns, which you can collect. Your first successful holdup unlocks this trophy.
Crime Wave
Hold up 20 citizens.
See above.
Phone Thief
Steal a phone.
Approach citizens in the neighborhood and wait for their reactions. Some will fawn over you, while others may take out their phone to snap a photo. Climb up the legs of an NPC with a phone, snap their neck, and take the phone to unlock the trophy.
Photogenic
Allow 15 citizens to photograph you.
Like mentioned above, citizens in the neighborhood might take photos of you if you approach them without aiming at them. Let fifteen NPCs snap your picture to unlock this trophy. Keep in mind, if you run out of citizens, you can save and reload or enter a special zone like a bunker to reset all NPCs.
Joy Ride
Drive a car.
You can purchase the car in Mean Streets, the first open area of the game, for 400 Acorns after you've collected 12 Golden Acorns. Once you own it, you can call the car anytime from the options menu while standing on an open road. Unlocking the vehicle is also necessary to battle the first boss and advance in the game.
Anti-Tank Rodent
Defeat Father and his tank.
There is a circle of acorns on the street which triggers a cutscene introducing Father. This will also open a tunnel to a new area. Drive into the tunnel to reach your fight with Father, who will be inside a tank.
To damage the tank, first shoot the green circles on either side of its treads. Then, quickly run underneath and shoot the green triangles to destroy the front grill. Be sure to avoid the electrical field that appears, and get ready to target the treads again.
After sabotaging the tank a second time, jump on top and toss the explosives conveniently stored in the turret basket at the commander's hatch to blow it open. This is also possible right after sabotaging the tank for the first time. Run from the electrical field once more, then prepare to shoot the treads again.
Repeat the process of immobilizing the tank and throwing explosives into the open hatch until Father is defeated. If you've unlocked the Bomb Suit, I highly recommend wearing it to reduce damage from the explosions.
John, Loo, and Dunny
Find every latrine.
The first toilet can be found inside the yellow house, also known as Cookout Party, in Mean Streets. Jumping into the toilet will drop you below the house.
The second toilet is a porta-potty located next to Fenced Block in Mean Streets. If you haven't already, you can pick up the Bomb Helmet and Bomb Suit from a nearby hole.
The third toilet is hidden in plain sight in Yee Haw Zone.
I'm an Oil Squirrel
Strike oil and get messy!
In the Yee Haw Zone, grab an explosive from the saloon and drop it down the hole in the outhouse. Then, stand in the oil to unlock the trophy and a new outfit.
Nautical Squirrel
Ride a boat (or water skis).
Once you've collected 23 Golden Acorns, you can buy the boat for 400 Acorns at the poolside in Tough Streets, the area that unlocks after defeating Father.
Rocket Flying Squirrel
Ride on a rocket fired from an enemy!
In Wet Streets, which you can access via the boat from Tough Streets, look for an agent armed with a rocket launcher. When they fire a rocket at you, press the fire button to ride it. Just remember that you can't ride rockets while holding anything, so make sure your squirrel isn't carrying a gun!
Yippee-Ki-Yay, Mother-Nutter!
Defeat 100 Agents
You'll earn this achievement naturally as you progress through the game.
Flying Squirrel
Pilot a Quadcopter.
In Wet Streets, press all the giant buttons to unlock the door to the quadcopter. This vehicle requires 40 Golden Acorns to unlock and costs 400 Acorns to buy. Riding the quadcopter for the first time will unlock the trophy and automatically grant access to Mother's Tower.
Close Shave
Shave 30 Agents.
While riding the quadcopter, touching an agent's head will "shave" them. The easiest and fastest way to achieve this is by shaving the heads of the agents in Mother's Tower.
Action Button Hero
Perform every takedown at least once.
This trophy requires nine different takedowns.
Anti-Aircraft Rodent
Defeat Mother and her helicopter.
Concentrate on hitting the green parts of the helicopter to make it crash. Once it lands, open fire on the agents inside. You can also fire at the agents in the mid-air when the helicopter opens its doors.
When the helicopter takes off again, run away from the electrical field and get to a higher ground. Avoid the rockets and incoming fire while shooting the helicopter's green weak points to bring it down once more. After taking care of the agents, get ready to flee from the electrical field and head to the bridge.
Use the quadcopter to fly away from the lava below and focus on shooting the helicopter's rotor. Just make sure to stay clear of the blades!
Street Credits
Get a perfect score in the credits minigame.
After defeating Mother, you'll find yourself on an automated quadcopter armed with an SMG that has unlimited ammo. To achieve a perfect score and unlock this trophy, make sure to hit all 128 credits. I highly recommend holding down the trigger for the entire duration.
Shavior
Shave 30 Citizens.
If you have 49 Golden Acorns and have completed the game, you can buy a quadcopter for 1,000 Acorns to enjoy in the open world. Or you can use the one you unlocked to fight Mother. Fly around the neighborhood and touch the heads of citizens to shave them. If you run out of citizens, save and reload your game.
Platinum Acorn
Achieve all the Trophies.