Ruin

Ruin has the appearance of a Gigancitc inflamed demon and is toughest enemy to encounter in the final wave of SAS zombie assault tower Defense HD. Surprisingly it can withstand a group of Zeus Exclusion X4 Turrets, Moderately upgraded SAS Soliders along with Snipers and Most other defenses.

Ruin Rarely spawns in Freeplay mode after killing him in the final wave.