Is there any way to enable pernament brick damage where the bricks won't respawn but stay laying on the floor forever until minigame reset or something like that?
You cannot fake kill for -1.
Would it be possible to make a mod for that?
Yes, and I would actually quite like a minigame mod that made damage permanent until a reset.
It should also include setting a bricks strength (how many hits it can take before it breaks), because some bricks would be more durable then others.