Forum:How do you do this OTK

Here's an exact quote from a cannon soldier card tip from yugioh wikia:

This card can be combined by having 1 Spear Cretin in the graveyard, and having 1 Spear Cretin in face-down defense position. Flip the face-down Spear Cretin, and then use Cannon Soldier to tribute the Spear Cretin, then use the effect of Spear Cretin to get the other Spear Cretin in your graveyard onto the field in defense position. Continue this process to create an OTK.

When you summon spear cretin in face down, you can't flip summon it on that same turn right?