Side Story: Lost in a Nightmare

Where is this place? It doesnt look familiar at all! OH NO!! A GOLEM BOSS FIGHT!?!? Controls: WSAD: MoveSPACE: Jump Left-Click: Attack Esc: Pause Made for WGJ 106: "Oh No!", also a side story to a future game about to be released in a month. I must admit this game is quite rushed - in particular the BGM which was quickly composed in a day by someone with no proper music theory knowlede. Its not much, but please have fun ^^