IGN: "Third-party giant SEGA has twice gambled on Wii's adult demographic and twice fallen short of the grand retail payoff. The first bet, House of the Dead: Overkill, was an on-rails shooter in the publisher's acclaimed zombie series. And the second, MadWorld, was a black and white brawler drenched in gore. Despite good reviews for Overkill and rave reviews for MadWorld, neither title performed very well on the sales charts, which inevitably led to wild speculation as to why that was. According to some pundits, the on-rails nature of House of the Dead ultimately did the game in, just as MadWorld's ultra-stylized monochromatic presentation proved too much for general audiences."