Ahh... I need help with series idea!

[Shobzy]

Right so i was going to buy cod ghosts but now im not really feeling it. The problem about this is that I had a really great series idea which goes like this.. Every few times I die I have to do a challenge e.g eat chillis.
Now i'm not getting it I'm not sure of what to do it with. I'm thinking of doing it on minecraft but how??

 

[JollyDangerous]

Every time you lose a heart or when you are looking for a certain amount of diamond and you find gold or coal instead.