Attack a monster that with same ATK as "Gyroid" (1000 ATK normally). Normally both monsters would be destoryed but in this case "Gyroid" won't and your opponent's monster will.
It is very easy to use this card with "Supercharge", as you can be sure that it will be in face up defense position if your opponent has more than one monster.
This is a good early game card to play, especially on your first turn. Even though it's lacking in stats, the ability to survive one attack per turn makes it a good early stall Monster. It will force your opponent to attack it twice in order to destroy it.
Another strategy to really cause a headache for your opponent is to Special Summon "Gyroid" then use "Inferno Reckless Summon" to summon two more copies onto the field. That will created a near impenetrable wall on your field, requiring a total of six attacks to eliminate them all.