Colour-blind gamers will no doubt be delighted to learn that the two main colours are red and green, though yellow receptors are soon introduced, as well as a few new tricks like the ability to remove pieces which may be blocking one beam's path, and mirrors which rotate 90 degrees every three seconds. Last but least worst is Hardware Crack, a light-reflecting puzzle where you place mirrors to guide beams into similarly-hued receivers. With four different types of virus having different effects – one type is only recognised by a specific antiviral defence, another forces the countermeasures to briefly attack one another – there should, in theory, be some strategy to this, but it tends to devolve into mindless button-mashing as you press A repeatedly with the odd B and X thrown in for good measure, overwhelming them with sheer numbers rather than any kind of tactical plan. You can send out as many red spinning icons as you like as long as the slowly-refilling meter isn't entirely depleted.

Dead space ignition solutions