Thanks for your comments.
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×2N1W: you need to line them all up on one diagonal so they won't touch the hot tile. It should require a fair bit of persistence, as well as being aware of movement priority.
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×2S: you need to use the mimic, not to kill the roach or to step on a tile, but to help the roach towards its destination which is a hot tile. There's a right way and a wrong way to do it. The wrong way means that you are 1 golem short.
I think I am almost done with this hold. I intend it to be a single level hold, and currently with 10 puzzle rooms and 1 exit room, I think this is enough. I didn't make the snake room a secret. I feel like if I made it a secret, there would be too many secret rooms. I did put a subtle hint scroll in that room, as well as changed it so that you can reach 1N and 1N 1W without completing the snake room. If people feel strongly, I could still be convinced to make the snake room a secret.
There is 1 new room in this version at 1N. It should be fairly simple, and hopefully fun. There are enough checkpoints so that the player does not need to be frustrated when the mimic is burnt. After a final review, I will probably remove the exit room scrolls, possibly give it a new name, and edit some of the captions, such as the exit hold text and the intro text. If I have inspiration, I may add a room or 2.