This has actually been done by 1 or 2 people a fairly long time ago (before fight caves update) using just melee rather than hiding in a corner and using 1000s of sweets .
Sgt I'll take that offer if you are 99 hp. Sorry it's been awhile got too much schoolwork. Also @ bob1337 I know i just haven't seen anyone on sythe post about doing it so i decided to