As with all of these games, never ever ever press up on the D-Pad. You will void trophies if you do so.
Skipping cutscenes/dialogue by holding down Circle is okay
I've listed the animals that have been documented in the steam collectibles guide, but I've also listed some other animals I came across that you may also want to interact with, just in case. I just didn't give them official “x/y” numbers. By interacting with these “just in case” animals, I unlocked the related trophy earlier than the steam collectibles guide indicates I should have, so there's some wiggle room here.
The bonus chapter you unlock at the end of the game is unnecessary. You also cannot unlock the “play mahjong instead of HO puzzles” trophy in it (besides, I give you a faster method for it in this guide).
Start new game – EXPERT
Lecture Hall
Use laptop – start slide show
Zoom on purse – move stuff until you can pick up the phone
On phone – interact with flashlight
Zoom on fuse box (right)
Flip all three switches
Use laptop and start slide show
Ship Prison
Interact with skeleton in chair
Zoom on skeleton
Interact with skeleton arm
Zoom on case – interact with it
Pick up medal
Pick up skeleton arm
Zoom on dragon head above girl
Interact with the two “nostrils” (there's X's on them)
Use medal with screws
Zoom on note
Pick up lockpicks
Zoom on cell door
Use lockpicks with top lock
Interact with lockpicks
Pick up hairpin (girl)
Zoom cell door
Use hairpin with lockpick
Interact with lockpicks
Use admiral hand with key on table – get key
Use key with other lock – The Great Escape (S) unlocked
Exit to Captain's Cabin
Captain's Cabin
Interact with barrel
Interact with globe
Zoom on globe
Pick up bullet
Pick up harp weight
Walk up to desk
Pick up bird weight
Zoom on painting
Pick up heart
Zoom on drawing
Back out
Zoom on desk in background
Grab weight in bottom right – put on left scale
Use harp weight with left scale
Use bird weight with left scale
Pick up skull
Walk up to case left of desk
Use skull with skulls
Pick up heart
Zoom on blue gate in background
Pick up heart
Walk up to desk
Zoom on sculpture that was behind the drawing
Use hearts with sculpture
Interact with symbol
Zoom on box next to sculpture – a paper with the symbols should appear
Change the symbols on the box to open it
Grab spoon – use it to fill the blunderbuss with gunpowder
Use bullet with blunderbuss
Pick up blunderbuss
Zoom on blue gate
Use blunderbuss with lock
Exit to balcony
Balcony
Pick up lever (on right balcony)
Interact with zipline
Pick up zipline handle
Back (circle) to Captain's Cabin.
Captain's Cabin
Walk up to case left of desk
Use lever with empty area
Interact with lever
MAKE A SAVE BACKUP. This is a great HO scene to get most of the HO-related trophies, since it's always the same. You may have to play it twice to get all of them, though, so play through and reload your save backup to get the HO trophies you didn't the first time.
There are two pictures here - the first picture shows where you need to click to reveal some of the hidden items for collection. The second shows where all of the items actually are. I recommend revealing the items, then blitzing through and collecting them all with the second picture.
Walk up to new area
Solve HO scene – get zipline reel – Hidden Talent (B), Quick Sleuth (B), and Marksman (B) unlocked
Exit to balcony
Balcony
Use zipline reel with zipline
Use zipline handle with zipline
Interact with zipline
Interact with crank x3
Lifeboat
Pick up oar
Use oar with bucket
Use bucket with jellyfish
Pick up oar part
Zoom on broken oar
Interact with handle
Pick up rope
Use oar part with broken oar
Use rope with broken oar
Interact with oar – get fixed oar
Use each oar with oar mounts
Interact with oars
Beach
Zoom on dog
Interact with dog (1/16) – it registered if he leans forward and wags his tail
Pick up doubloon
Back out
Zoom on mushroom left of dog, under the rock
Interact with galleon
Interact with all three crabs (2/16) until they disappear
Pick up galleon
Further left on this rock is a Seahorse (1/12) – you'll see the Interact option when you're hovering over it – Seahorse Ashore (B) unlocked
Zoom on statue under waterfall
Interact with puzzle piece (1/24) he's holding – Puzzling Find (B) unlocked
Interact with crab on left – Animal Lover (B) unlocked
Use doubloon with statue hand
Pick up falling star
Back out
Zoom on vines behind dog
Interact with fireflies x4 (4/16) to move vines
Exit to Crow's Nest
Crow's Nest
Seahorse (2/16) in barrel on right near the purple/pink plants
Interact with bird on skull (5/16)
Pirate card (1/10) in skull's mouth – Special Card (B) unlocked
Interact with rope on right – get steel rod
Talk to pirate
Back out to Beach
Beach
Interact with shipwreck
Use steel rod with planks
Walk up to new area
Solve HO puzzle – get wooden tongs
Zoom on statue under waterfall
Zoom on electric eel right of statue
Use wooden tongs with scissors – get scissors
Zoom on dog
Use scissors with net
Zoom on hole dog dug
Pick up spyglass
Exit to Crow's Nest
Crow's Nest
Use spyglass with pirate
Walk up to spyglass
Lawyer's Office: bottom left corner, bottom focus
Davy Jones' Office: top right corner, middle focus
Prison: bottom left, bottom focus
Garden Gate: top right, middle focus
Palace: left of the Garden Gate, top focus
Bridge: bottom right, bottom focus
Zoom on platform under lantern
Zoom on purple things
Interact with purple things
Pick up purple jewel
Back out
Exit to Bridge
Bridge
Zoom on octopus statue/weathervane on right
Puzzle piece (2/24) on top left plant
Pick up rung on right (it looks like a plank of wood)
Walk up to the vine-covered box near the broken ladder
Use scissors with vines
Pick up plank
Back out
Zoom on ladder
Use rungs with ladder
Exit to Lawyer's Office
Click here to view the article