A quick guide on how to unlock all the alternative outfits in Lily’s Well. Spoiler Alert!!!
Frog
Unlocked by getting Alt Ending – Vehicular Manslaughter
In Depth Guide:
Go to the road at the bottom of the left side of the map, and walk into the street. If nothing happens, leave the screen and come back. Eventually, a text box will appear telling you not to play in the road. Ignore it to get the ending.
Red Riding
Unlocked by getting Alt Ending – Don’t feed the Wildlife
In Depth Guide:
Use the bold cutters from the shed to open the pantry, then take some jerky from inside. Go to the woods to the left of the house, and use the jerky at the pair of eyes staring at you between the trees (if you don’t see them, they should be between the blue-thorned vine and the edge of the screen). Then get any ending. Repeat this process until you get the ending.
Kyu-Ah Lily
Unlocked by finding the painting.
In Depth Guide:
Gather 8 pieces of rope, and the shears from the shed. Descend into the well, and use the shears on the fan in the vents.
Rose
Unlocked by talking to Papa at the bottom twice.
In Depth Guide:
Gather 10 pieces of rope, then descend to the bottom of the well. Then do it again.
Thanks to Goth Bunny Alice for his great guide, all credit to his effort. you can also read the original guide from Steam Community. enjoy the game.