NintendoLife writes: "Earlier this month, Hudson took a gamble and decided to release a first-person shooter on WiiWare. Due to it being the first of its kind on the platform and a new IP, some thought that Hudson would regret making such a bold decision. In the end, though, everything paid off, as not only did Onslaught become one of the most successful WiiWare titles in a short amount of time, it was also fairly well-received by the gaming press."