Harmonix drew a pretty sizable crowd today at their Penny Arcade Expo panel, entitled “History of Harmonix: The Rockening.”

The panel was packed with veterans of the Boston-based studio: Dan Teasdale, Dan Schmidt, Ryan Lesser, Heather Wilson, and Sean Baptiste. The five talked about Harmonix’s earliest project (the Epcot Center installation piece “What if music were in the air?”) to designing their current blockbuster,Rock Band.

Hell is Us gameplay reveal

At the end of the panel, Dan Teasdale revealed one of Rock Band 2’s most brutal achievements, “Bladder of Steel.” This achievement from hell requires players to not only play through the game’s endless setlist (comprised of all of the game’s tracks, back-to-back), but to do so without pausing … or failing.

Heather Wilson then revealed next week’sRock BandDLC, the “PAX Pack.” Each track is 99 cents apiece (or 80 MS Points), or you can pick up the entire pack for $3.00 (or 240 MS Points). A portion of the sales go directly to the Child’s Play charity. The pack includes:

Black Ops 6 Season 5 Multiplayer Ransack Mode

I’m working on finding a solution for uploading and streaming audio of the entire panel; in the meantime, hit the jump for a few interesting tidbits that came out during the hour-and-a-half session.

Tekken Tag Tournament 2: a black and white Jin and Heihachi stand back-to-back.

PEAK Bing Bong plushie

Silent Hill f: a woman’s face covered in blossoming but deadly looking flowers.

Mei NERF gun in OW2

Battlefield 6 vehicles combat

Several men standing and watching at an explosion in the distance in Battlefield 6.

BO7 key art

yordles animation still image