Pixeloids is a game set in a virtual world where The Pixeloids computer programs co-exist.
However, recently a security exploit has allowed the Infectoids to gain access to the system. The Infectoids only need to come into contact briefly with a Pixeloid to recompile them into their own kind.

As a Protectoid is your responsibility to fight off the Infectoids before they take over the system, with two different weapons, either the shredBomb or the Resequencer