Comment $20,000 ? Nice try add a zero to get serious (Score 1) 45
When a developer finds that kind of bug they have the upper hand, I would add a zero and make it $50,000 - $200,000 and if Nintendo wasn't willing to enter contract to exchange the security research for the money by say 20-30 days I would pull a Google and do a Day-Zero publish on the defect.
Then I would rinse and repeat including a contractual boilerplate clause to protect and indemnify and collect my payment in bitcoin. 20K is insulting.