At PAX Prime in Seattle, Double Fine's Tim Schafer and Valve's Erik Wolpaw gave a panel called "Plot vs. Play" in which they discussed the ongoing debate about gameplay and story. The panel was co-hosted by Kotaku's own Jason Schreier.

Welcome everyone to week 3 of the Kotaku Game Club's look back at Portal 2. In our third meeting we'll be talking about the game's story and characters.

Bastion's deep voiced narrator Rucks is a serious guy, full of insight and detailed information to help the Kid rebuild his world. Turns out he's not the only technological maverick in this universe.
In this video Rucks gives an account of his history with Aperture Science founder and lemon enthusiast Cave Johnson.…

With Portal 2's arrival, lemons replaced cake as the game's edible meme. (If you don't know what I'm talking about, read up here) So before this one is totally played out, let's acknowledge one of its more creative applications: these prop lemon hand grenades, by flickr user ammnra.

It goes without saying that this site constitutes one gigantic spoiler, so don't go there if you are still interested in discovering for yourself anything about Portal 2 or the founder of Aperture Science, whose recorded messages of accelerated dementia have made the character another cult hit from Valve.

The fourth and final Aperture Laboratories investment opportunity video is here, harping on the benefits of not having Chell's shins forced into her nasal cavity when falling from great heights.

When you've got a product that works as well as Portal's Turrets, you can't limit them to purely military use. Aperture Science boss Cave Johnson proudly presents the Turret consumer edition, now available in countless designer colors.

Today's Game Informer cover unveiling is just the latest in a year and a half's worth of Portal 2 news that has been steadily leaking about the Valve game since 2008.