10 Outrageous Hidden Moments In Video Games

10. Liberate The Alien Seals - Splinter Cell: Double Agent

Though Tom Clancy's Splinter Cell: Double Agent was released back in 2006, it wasn't until 2010 that its most absurd and unexpected secret mission was uncovered, by Ubisoft Montreal's own level designer Simon Lasalle no less, who expressed disappointment that players didn't report it themselves.

The mission in question only appears to be available on the Xbox version of the game, and is accessed by playing Double Agent's co-op mode, whereby five alien seals - as in, the clap-happy animals - can be discovered throughout the game world.

These bizarre-looking extraterrestrial pups, named Cookie, Buddy, Pepperoni, Vanilla, and Muffin, can be rescued by carrying out various fetch quest-style tasks.

Saving all five alien seals will result in the seal princess (really) descending from the heavens to thank you for saving them and, inexplicably, the universe, before venturing back to their home planet and dubbing you both "Splinter Seals" for your efforts.

In a series known for its grit and "realism," this truly shattered the suspension of disbelief for any player who stumbled across it. Or more likely, they saw one of the 2010 articles written about it and then tried it for themselves.