This is so well-polished! The movement and animations are so seamless, and the flickering lights make for good atmosphere. I especially love the head-shaking/fist-waving animation when one brother tries to exit without the other - it really helps flesh out the relationship between the two goblins.
I am not so great at this style of puzzle, but I appreciated that there is room to experiment and explore each area. I never felt like I was expected to discover the single correct sequence of moves to solve a puzzle. It makes the game more forgiving (but still challenging,) and it makes the dungeon feel more like a real place instead of a space that was reverse-engineered for a puzzle.