This question was almost directly closed:

Why do NPC party members often "get stuck" when following the player?

These questions are still open:

What data compression did Donkey Kong Country use?

Did the Saturn fail because of game distribution issues?

Why didn't SNES Doom use mode 7?

Did the Nintendo S-SMP really contain 3 million transistors?

Is the first question closed by mistake, or is it an oversight that the rest of them still are open? If the first one is correctly closed, I think someone needs to write a explanation why that question isn't according to the rules, but the rest are.