Visible and yet not easily spotted changes to the teaser image for "Five Nights at Freddy's World's" second update is now causing a bit of a stir among fans.

The changes to the teaser image, which can be seen on the game's official web site, don't leap out at first, but taking some time to look at the picture does reveal that a few things have changed.

In this case, the changes come in the form of three characters riding three airplanes being added to the image. The new additions can be spotted at the upper right hand corner of the image itself.

Balloon Boy, Chica and Freddy are the ones flying the airplanes.

Unfortunately, the additions don't come with any explanation, at least not one from Scott Cawthon directly.

Scanning the other portions of the image reveal nothing else of note, and perusing Cawthon's other outlets, such as ScottGames.com also fails to provide any information about the new additions.

Still, that has not kept fans from speculating about the meaning of the airplanes.

According to Design and Trend, it's highly likely that the additions to the teaser image for "Five Nights at Freddy's World" are hinting at a new mini game that is set to be introduced to players once the second update is ready.

Since the game does feature some classic RPG elements, it would probably be reasonable to think that Cawthon is venturing even further down that path by also adding another staple in the form of a mini game.

At this point though, it's still tough to confidently come up with a meaning for the new image additions, so fans will just have to stay tuned to find out more.

Cawthon has also yet to announce a release date for "Five Nights at Freddy's World's" second update, though with any luck, fans will be able to try it out sooner rather than later.