A Microsoft rejeitou o pedido da Amazon para apresentar o Master Chief de Halo ao lado do Doom Slayer em "Nível Secreto". Microsoft rejected Amazon's request to feature Halo's Master Chief alongside the Doom Slayer in "Secret Level."

A série animada da Amazon, Secret Level, com várias franquias de videogames, esperava incluir um crossover entre o Master Chief de Halo e o Doom Slayer. Amazon's animated series Secret Level, featuring various video game franchises, had hoped to include a crossover between Halo's Master Chief and the Doom Slayer. No entanto, a Microsoft recusou a proposta, apesar do apoio de contatos internos. However, Microsoft declined the proposal despite support from internal contacts. O show, que já conta com jogos como Pac-Man e The Outer Worlds, está avançando com uma segunda temporada, e os criadores Tim Miller e Dave Wilson esperam garantir mais colaborações IP no futuro. The show, which already features games like Pac-Man and The Outer Worlds, is moving forward with a second season, and creators Tim Miller and Dave Wilson hope to secure more IP collaborations in the future.