The cake may well be a lie, but Beyond: Two Souls’ bizarre Portal-inspired expansion is not. Sony has released a trailer for the upcoming PlayStation 3 exclusive’s special steelbook edition, which includes an additional 30 minutes of gameplay courtesy of the Aperture Science-esque ‘Advanced Experiments’ training missions.

During these trials, you’ll once again assume the role of Jodie Holmes, but will need to work with supernatural entity Aiden in order to pass several high-pressure puzzles. Given the core game’s grounded narrative focus, it seems like a bit of an unusual addition – but we suppose as an optional bonus, it could be pretty neat. Rumours that Stephen Merchant is set to reprise his role at Wheatley are unfounded as far as we’re aware.

[source youtube.com, via computerandvideogames.com]