Question though:
Why? It's not like it's irreversible if you're still in the room when he leaves, so you can simply press "
R"
to restart the room if he escapes to the north, or even easier simply undo to a turn when he wasn't escaping.
Therefore, resetting the entire level because he escaped one room is probably overkill, even if there was no reset feature, because it would get rid of hard progress unnecessarily, as one could always restore to the last safe checkpoint before he escaped.
Even though this may mean going back to the previous room and making it not cleared again, it's much better than making the entire level not cleared again.
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Please feel free to test the ultimate arena:
King Azb's Arena today!
[Last edited by azb at 07-13-2022 11:44 PM : Added further arguments]