..there are only 50 levels/doors not 100 as the title suggests, and there's a touch/tap issue on some levels. I liked this dev's other games much better (Escape The Ghost Town 1&2). Many of the puzzles and rooms are repeated here, puzzles are clever and fun except I hated the number vs symbol equation puzzles. Thankfully there's an in-game walkthrough for every level, which I used on those. Otherwise, no glitches and banner ads are not intrusive.