A game-breaking bug in the upcoming game Anna: The Magic of Words (NES/Famicom) where the player stuck in a wall sometimes. The bug was found by 8-year-old Leon at LNC 2026 in Leipzig/Germany in May 2026. The linked video shows the bug and its fix.
See it in action (and read about the behinds and the fix):
https://www.eastpixel.de/en/2026/05/17/anna-the-leon-bug-and-its-fix/