Thief in the Endless Museum!

As the Citys best thief, you collected all sorts of treasure to sell for hard-earned cash and eating trash. But sometimes... a thief is not truly a thief until they complete the milestone of robbing the endless museum: A gigantic, even endless, building of floors, with treasure of various values just ready to be stolen! You play a Thief in this endless maze generator. While in the air ducts you have the chance of choosing three difficulties of floors. The higher the difficulty, the more treasure there is. BUT WATCH OUT! It wouldnt be that easy. For no genuine reason the Job satisfaction in the...