In theory, but it wouldn't be secure or reliable. ie people would cheat and it wouldn't always work.
For the minigame brick respawn - try it out. It will work just the same but look cooler.
Not sure about truly dead bricks. Fake killed bricks for sure.
Additionally: My hole is deep and warm. I like my hole.
more questions! I must be getting annoying, I don't care though:
1: How would you make something like the leaves? would it be like, on player touch-self-(see 2)-(see 3)
2: would this make it's own event or would it just use the already existing fakekillbrick event?
3: If it is it's own event what would the parameters be?
4: Are you interested in buying a cover for your hole?
5: Would all bricks be able to do this or just the bricks that can currently be destroyed by a blast?
6: 6 months is to damn long (not a question but I don't care)
7: similar to Q1, if you fell on the brick and gave it an event to, say, explode upward, could you do that?
8: Can i come in your hole? It's cold out here.