I’ve found all the plushes in the process of writing this list.
The plush locations I’ve found so far are:
- One very close to the “Electric Mine” area, where the foreman refight is. Behind a tank of some kind.
- One in the ravine beneath the bridge in an overworld cave system near the crystal dungeon.
- One in the lower docks inside a building.
- One in the castle near the bandit boss.
- One in the bamboo beach, very close to the bunobi refight.
- One in the city, towards the back where enemies appear. It’s visible by skirting the wall, near the wireframe house.
There is a plush encounter on the other side of the beach, at the start of the dungeon, but they do an ability reset service and don’t seem to count for the scavenger hunt. The same is true of the plush at the end of the game that unlocks debug mode.
After finding the last plush, they give you the same “You found me! You have 0 left to find” message. Nothing else happens. No reward, no items appearing in my inventory. Note that I had already beaten the game and had debug mode enabled, which may affect things, but I believe this is just a flavor thing.