I didn't notice the rotate feature for an embarassingly long time! Once I'd stopped being an idiot though this was great, plenty of challenge in the initial rush to get a path to the exit and then a desperate scramble to try and grab any chests I'd missed.
The changing game modes works really well, with actually traversing the dungeon adding a much needed moment of respite after the intensity of the build stage.
Love the blue screen of death!