Lost Grimoires 2: Shard of Mystery

There are 31 Rose symbols in the game, one on each screen. They are generally hidden as part of the screen's background but when you hover in their area, the button will turn into a "Pick" command (unlike some of the other Artifex Mundi games, which don't tell you when you're on a collectible).

Make these a priority whenever you enter a new screen. The way this game is set up, means you don't have access to the full map for the entirety of the game and instead are stuck to 3-4 screens until you clear them all and are moved to the next set of screens. They can be found in order:

1. Carriage – On the swinging lap above Fern
2. Camp – On the bigger rooftop of King's Carriage
3. King's Carriage – In the top left nook of the shelves on the right
4. Greenhouse – Under the left arching branch, on the domed ceiling
5. Hall of Triumph – Top right leaves of the tree, next to one of the shining lights (third from the right)
6. Old Library – On the globe near the right bookshelves
7. Fern's Chamber – On the shield above Fern's bed
8. Garden Maze – In the rearing horses and lions statue on the right side of the maze
9. Altar of Mirrors – In the top right dangling mirror shard, near the suit of armor's head
10. Altar Ruins – On the far right of the screen, behind a pillar – you may not be able to pick it up until after you talk to Rose and pick up the shard and the screen zooms back out.
11. Duct – On the stairwell in the background near the three arches – it's hidden among the plants growing on the house
12. White Archway – In the dirt at the bottom right of the gates
13. Amberleaf Forest – From the "!", go right until you land on it on the right side of the screen, in front of some trees
14. Oak Grove – On top of the lit window of the house
15. Rose Hut – Halfway up the stairs, in a twisty vine on the right. You will have to do this after doing the coloring minigame.
16. Dewdrop Lake – At the base of the stairs on the left, just up and right of the D-Pad HUD
17. Moorland – In between two trees in the top left of the screen
18. Float Town Bridge – At Drosera's feet (you will probably have to talk to her first)
19. Float Town Main – On the mast with ropes on it, near the intersection on the mast
20. Float Town Ledge – On roof of building on right
21. Crystal Turtle – In some crystals at the right base of the archway the turtle is in
22. Crystal Army – In the middle of the screen. From the top of the first "!", go up until you hit the next level of crystal army soldiers, then it's a bit to the right.
23. Courtyard – At the base of a green pillar on the right side of the screen
24. Armory – On the front of the stove on the left of the screen
25. Rescued Fern – From the top of Fern's head, scroll left. It's next to a purple and blue crystal leaning against each other. If you hit the cracked crystal, you've passed it up.
26. Map Room – In the top left bubble in the middle of the room
27. Drosera's Sanctuary – In the center of the ice sculpture in the middle of the room
28. Well of Blight – In an alcove on the top left row of the well. It's next to one of the lanterns
29. Cave – In a group of stalactites on the ceiling
30. Quartz Ship – In a bunch of purple crystals on the left side of the ship
31. Final Screen – On the front of the ship, just next to Fern's head