It seems that when I attempt to download any of the 'King of Fighters' games in the arcade section, nothing happen after clicking the 'internet archive' button. Are the files missing or it's an issue with my browser?

Those are the ones I tried to download:

The King of Fighters 2002
The King of Fighters 2001
The King of Fighters 2000
The King of Fighters '99
The King of Fighters '98
The King of Fighters '97
The King of Fighters '96
The King of Fighters '95
The King of Fighters '94

Nope. Happens to me too.

I hope someone can fix it. I think it's a huge part of the arcade section.

It also happens with Addam Family in the SNES section.

The links work for me.

It still wouldn't work for me, some rare files doesn't want to be downloaded with Google Chrome, but I tried with Fire Fox and it works. So for a mysterious reason my Google Chrome browser have issues with certain download urls.

There is a bug on the website for longplays that have been here longer than 2014, but you can fix it by just right clicking the archive link and hitting save as

I see, thanks for the insight.