We mentioned that Arcade Archives: Kiki Kaikai was coming to the Switch this week just a few days back, but it turns out there's something special going on with this retro release. Arcade Archives: Kiki Kaikai is going to include the Western version of the game as well, which is called Knight Boy.
Here's where things get really interesting. Kiki Kaikai was never officially released in the West. There was a limited bootleg release of the game, which was titled Knight Boy. It's pretty much the same game as Kiki Kaikai, but with palette-swapped title screen. The title screen said the game was licensed by Taito, but that's not the truth!
How Hamster managed to include Knight Boy in Arcade Archives: Kiki Kaikai is beyond me, but it's certainly a neat part of history!