>>46073362This raises a big question. It's been established that a Pokemon isn't trapped inside a ball, even after caught they pop out anytime.
The anime in particular has referenced this many times, mainly with for comidy relief Jessie's Wobbuffet or Misty's Psyduck.
But can a Pokemon freely leave a Master Ball? Is it it the one truly unethical Pokeball? It would certainly explain why it's never mass produced.