Bippo Ernesti | The Goonies - Softlock Bug @BippoErnesti | Uploaded 1 year ago | Updated December 09 2022
A progress blocking bug that's not entirely impossible to accidentally have happen during regular gameplay.

Basically, if you plant a bomb by a door and walk far enough away to scroll it off the screen before the explosion finishes, it blasts the door open but doesn't spawn the thing it holds. If the lost thing happens to be one of the Goonies, you can't finish the game. If it's one of the three keys, then that level will become your tomb. Since the first level only has four doors, you're guaranteed to lose either a Goonie or a key.

In some instances, dying may reset the door, allowing you to continue. It seems that if you blast any more doors after the bug occurs, you'll be unable to fix it. From what I can tell, this bug is present in every release of the Famicom-based game (FC, VS, PC10, FDS).