Interesting way to tackle the theme, exploring how we sometimes can't even trust our own brains. The pixel art is cute!
Gameplay-wise, shrinking the character's hitbox just a bit might help, as they get stuck fairly often. From a game design / level design standpoint, forcing the player to walk past an element before asking a question about it could prevent players from being asked about things they haven't seen yet and avoid those random guess moments.
Good job!