Marathon Infinity's "Vidmaster Challenge" features remixes of three levels, the first of which is Try Again from the original Marathon. Each level includes grey, upgraded enemies.

A few notes about our playthrough:

We played Marathon and Marathon Infinity on Normal difficulty. We increased the difficulty on Marathon 2: Durandal to Major Damage to compensate for our somewhat higher familiarity with the levels of that game.

With the final level completed, the W'rkncacnter is defeated (or at least still contained) and Durandal/Thoth let us know their current thinking on the fate of the universe.

This podcast uses:

Aleph One, free and open source versions of Marathon for Windows, Mac and Linux at http://source.bungie.org

Remixes of the Marathon soundtrack by Craig Hardgrove at http://themarathonmusic.com

We use irons' Co-Op script:

Our repeated destination is revealed to be a Jjaro space station with the power to contain the destructive power of the Pfhor's Trih Xeem weapon and prevent the release of the terrible, unknowable and unpronounceable W'rkcacnter. Can Blackstar and Narcogen find and insert two uplink chips in order to save the universe?

This podcast uses:

Aleph One, free and open source versions of Marathon for Windows, Mac and Linux at http://source.bungie.org

Foreshadowing both the cinematic glory of Gladiator and the ignominy of Star Wars Episode II, the Pfhor pit Blackstar and Narcogen against an array of the Pfhor empire's greatest warriors. Flaming death results!

This podcast uses:

Aleph One, free and open source versions of Marathon for Windows, Mac and Linux at http://source.bungie.org

Remixes of the Marathon soundtrack by Craig Hardgrove at http://themarathonmusic.com

We use irons' Co-Op script:

No need to wait for strange aeons for Blackstar and Narcogen to die, even in a level with hardly any enemies! In this case, we're bringing the plot of Marathon Infinity to a close by completing the activation of the dormant S'pht AI, Thoth, so he/she/it can call in the S'pht'Kr cavalry to kick Pfhor butt.

This podcast uses:

Aleph One, free and open source versions of Marathon for Windows, Mac and Linux at http://source.bungie.org

It seems we've been rescued from the Pfhor by a partially-activated Thoth. All that's left to do is investigate this underground power source... but let's go look for ammo, first, shall we?

This podcast uses:

Aleph One, free and open source versions of Marathon for Windows, Mac and Linux at http://source.bungie.org

Remixes of the Marathon soundtrack by Craig Hardgrove at http://themarathonmusic.com

We use irons' Co-Op script:

Blackstar and Narcogen face a profuse proliferation of insidious switches and spooky level design, not to mention a passel of fusion infused BOBs sent by the devilish Durandal. Also there's a spot of lag.

This podcast uses:

Aleph One, free and open source versions of Marathon for Windows, Mac and Linux at http://source.bungie.org

Remixes of the Marathon soundtrack by Craig Hardgrove at http://themarathonmusic.com

We use irons' Co-Op script:

Blake's BOBs are trying to escape through a volcano, and Tycho wants us to defeat them so we can all serve the Hindmost Creche. Sounds like fun!

This podcast uses:

Aleph One, free and open source versions of Marathon for Windows, Mac and Linux at http://source.bungie.org

Remixes of the Marathon soundtrack by Craig Hardgrove at http://themarathonmusic.com

We use irons' Co-Op script:

http://simplici7y.com/items/co-op

Tycho offers us a deal: if we let him out of jail, he just might not not kill us. Wait, what?

The power generators the Pfhor are using to keep us, the BOBs and Tycho restrained are (where else?) down in the dungeons. Who knew?

This podcast uses:

Aleph One, free and open source versions of Marathon for Windows, Mac and Linux at http://source.bungie.org

Remixes of the Marathon soundtrack by Craig Hardgrove at http://themarathonmusic.com

We use irons' Co-Op script:

The last secret Aie Mak Sicur variation makes wormfood out of Narcogen and Blackstar.

This podcast uses:

Aleph One, free and open source versions of Marathon for Windows, Mac and Linux at http://source.bungie.org

Remixes of the Marathon soundtrack by Craig Hardgrove at http://themarathonmusic.com

We use irons' Co-Op script:

http://simplici7y.com/items/co-op

More ledges, more lava, and more secret exits. Blackstar and Narcogen encounter strange ephemeral creatures and die horrible flaming deaths while trying to continue the Durability narrative and find a way to become wormfood.

This podcast uses:

Aleph One, free and open source versions of Marathon for Windows, Mac and Linux at http://source.bungie.org

Remixes of the Marathon soundtrack by Craig Hardgrove at http://themarathonmusic.com

We use irons' Co-Op script:

The third time's the charm for Blackstar and Narcogen in the last iteration of the electric sheep levels. We could go back to earlier timelines, but instead we press forward.

This podcast uses:

Aleph One, free and open source versions of Marathon for Windows, Mac and Linux at http://source.bungie.org

Remixes of the Marathon soundtrack by Craig Hardgrove at http://themarathonmusic.com

We use irons' Co-Op script:

We're here to kill Durandal! I mean, save Durandal! I mean kill him! Wait, what's this chip?

This podcast uses:

Aleph One, free and open source versions of Marathon for Windows, Mac and Linux at http://source.bungie.org

Remixes of the Marathon soundtrack by Craig Hardgrove at http://themarathonmusic.com

We use irons' Co-Op script:

http://simplici7y.com/items/co-op

Tycho makes Narcogen drink vacuum if he and Blackstar don't build a bridge across the slime.

This podcast uses:

Aleph One, free and open source versions of Marathon for Windows, Mac and Linux at http://source.bungie.org

Remixes of the Marathon soundtrack by Craig Hardgrove at http://themarathonmusic.com

We use irons' Co-Op script:

http://simplici7y.com/items/co-op

Oops! We missed a level. Thanks to zdude0127 who pointed out that we went ahead and posted Naw Man He's Close without going back for this secret Aie Mak Sicur variation, Carroll Street Station. More deaths by juggernaught await!

This podcast uses:

Aleph One, free and open source versions of Marathon for Windows, Mac and Linux at http://source.bungie.org

Remixes of the Marathon soundtrack by Craig Hardgrove at http://themarathonmusic.com

We use irons' Co-Op script: