• The part of sabotaging a trap sounds interesting, I hadn't thought about it. It occurred to me that at the level of prison escape that you are going to add, you can lock some guard in some cell, this mechanic can be useful for the creation of other levels.
• Yes, I consider it a bit bad block 2 characters, but it's not what I meant.
I meant that it was optional to get the extra character. But now I'm also considering that for some players it might be difficult to get it. It can work as you propose.
• Yes, I mean a level like the first two mission, this being the last level.
No guard turns it on when it goes out, I think it happened when you moved the one who was asleep in that place. But yes, it happened in this version (3.1).