High Moon Studios' third-person shooter Transformers: Fall of Cybertron is stuffed with Transformers fan service, much of it tucked away behind secret walls and out of plain sight. In a new post on Activision blogger Dan Amrich's website One of Swords, those secrets are exposed with detailed instructions.

Some of the Easter Eggs in Fall of Cybertron are simply cameos by Transformers like Rumble and Laserbeak, while others refer to classic gags and references to the original cartoon. In one, Decepticon Soundwave appears hidden as a lamppost — not a boombox — as he did in an early episode of the Transformers cartoon. In another, Grimlock's apron and bow tie, another TV show reference, appears hidden in a secret room.

There's plenty more hidden away in the game, as detailed by High Moon Studios and Amrich, which may make the game worth a second look if you missed them the first time.

Transformers: Fall of Cybertron was released in August for PlayStation 3, Xbox 360 and Windows PC.