10 MORE Video Game Secrets That Took YEARS To Find

Something that might have stayed hidden forever had the developers themselves not revealed it four years after release, 2006's Splinter Cell: Double Agent contained a side mission that sounds appropriate initially, but turns out to be a great deal sillier than its name implies.

Throughout the game's co-op mode are 5 seals in need of rescue. And no, these are not Navy SEALs - something which would not have been at all out of place in a Splinter Cell title, but actual baby seals. Upon finding each of these 5 siblings - named Muffin, Pepperoni, Vanilla, Cookie, and Buddy - they won't agree to be rescued until the players present them with items ranging from seal food to sunglasses.

Rescuing Buddy, the 5th and final seal, will cause the seal princess (yes, I know this is all getting very surreal) to beam down and announce that the players have saved the entire universe, and that the seals will now return to... their home planet.

Not only were you rescuing baby seals - you were rescuing alien baby seals from another planet whilst the fate of the universe, unbeknown to you, was at stake.

Because video games.