Speaking with Collider, Secret Level writers Tim Miller and Dave Wilson noted that they have indeed seen your questions, and in some cases complaints, asking why certain series got an episode when others did not. Miller noted a particular comparison where someone asked why Spelunky got an episode when Halo did not, leading him to reveal the big plans he and Wilson had for Halo in Secret Level but being unable to sell the idea to Xbox.
We wanted to make a Master Chief/Doom Slayer crossover episode, and I spent a whole weekend crafting this impassioned letter of my childhood. And it's exactly what Tim said; they were like, 'Nah'.
Xbox Said 'Nah' To Secret Level's Halo x Doom Crossover Pitch
There's always season two now Xbox has got the Halo show out of its system.
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