Wow, this one's super polished and professional, with so many fun little details. The library was neat, but the game got awesome when it went wild west and I kept playing til the end. My only complaint is it gets non-linear extremely fast. I'd recommend starting linear and let the player accomplish a goal first before introducing branching paths. Or perhaps a bit more explanation on what to accomplish.
Bug report: there's a tile in the purple room that isn't a door but acts like one. It teleports the player to two different locations, depending on the scroll position. There's also a pit in the library which softlocks you.