|Spoiler alert! This article may contain spoilers.|
After defeating Mary in the Sketchbook, Ib returns to a dark version of the starting gallery and finds an alternate version of the Fabricated World painting. The frame around the painting disappears with a clicking sound and the player is given a choice to have Ib leap through. If the player chooses to jump, Fake Garry will appear to claim he's found another way out and tell Ib to come with him.
If Ib goes with Garry, he will tell her she's a 'good kid'. Ib walks off to her unknowable fate hand-in-hand with Fake Garry as the screen fades to black. The player will receive a variation on the Ib All Alone ending.
If Ib chooses to go through the painting, Fake Garry will glare at her while trying to convince her to do otherwise. At the last second, he will lunge for her as she leaps through to the real world. In the Guertena Art Gallery, after examining the portrait of Garry hanging in place of The Hanged Man, the player will receive the Forgotten Portrait ending.
One of the theories on Fake Garry's existence is that he is a figment of Ib's imagination. As explained in the in-game book Ruin of the Heart, a broken mind will start to hallucinate. Ib is seen hallucinating in the main game when she sees a disturbing painting, Red Eyes, and the Blue Doll as cute rabbits. Ib seeing Fake Garry and choosing to wander around the gallery may be an attempt at restoring her new status quo instead of jumping, forgetting, and possibly dying (if the painting is a trap).
This theory is supported by the name of the ending gained (Ib All Alone) which implies Fake Garry isn't really there. In addition, if Ib chooses to go with her fake mother in the Promise of Reunion/Memory's Crannies endings, Garry sees her walk off with no one from the other side of the painting.
Another theory on Fake Garry is that he might be a manifestation of the gallery's own malicious intent. This is potentially the same source behind the Wall Writings.The theory paints Fake Garry as a last ditch effort of the gallery to keep Ib trapped forever.
The final theory is that Fake Garry isn't fake at all. After Garry loses all the petals on his rose, he dies in the gallery and a painting of him appears in real life. This may lead to the conclusion that not only does dying in the gallery kill you in real life, but being killed by a painting turns you into one.
Mary ❀ Claws • Headless Statue • The Lady in Red • The Lady in Blue • The Lady in Yellow • The Lady in Green • Blue Doll • Red Eyes • Fake Mother • Fake Garry • Mistake • Naked Woman • Liars • Spitting Painting •