Sorry for the me-tooism, but the idea of a hard mode of platforms without pause, reduced delay on the "drop blocks", perhaps even more wicked stone sentry column maze "bosses" or more wicked layouts, perhaps as an unlock on first completion, would obviously be non-trivial to implement, but great for a repeat playthrough, replayability and achievement hunting, though obviously deeply non trivial to add to the workload when you have to weigh it against making the base game longer and richer. Purely speculatively, but dual layouts might even be a way to "have your cake and eat it too" regarding the divisive nature of environments such as the column mazes and how some people find forced replays to be a turn off... just that nasty truth about it sounding like twice the level design labor which could potentially take away from the base game.