The innards of the Mass Effect 3 Collector's Edition have been revealed.

US shop GameStop spilled the beans. There, in the US, it costs $80 on PC, PS3 and Xbox 360.

A video showcasing the Collector's Edition reveals it includes exclusive "bonus squad appearances" for Ashley Williams, Liara T'Soni, James Vega and Kaidan Alenko, bonus Xbox Live Avatars and a "classified" bonus character and mission. What this is, we don't know.

GameStop's list reveals the following:

Premium metal case featuring male and female Commander Shepard.

Premium 70-page hardbound art book.

Limited edition Mass Effect comic by Dark Horse Comics.

Fabric N7 patch.

Exclusive 4x6 lithographic print of the SR-2 Alliance Normandy.

Additional in-game content including.

N7 Arsenal Pack - Bring the firepower with the N7 Sniper Rifle, Shotgun, SMG, and Pistol.

Squad alternate appearance pack.

Robotic Dog for on board the Normandy.

Mass Effect 3 digital soundtrack.