Los Megas were an IWRG based group which started out as the tag team pairing of Mega & Super Mega. In Summer 2001 Ultra Mega came along to join up with Mega and Super Mega and a regular trio was born. Then Super Mega left IWRG for X-LAW and Omega was introduced at his place. They had lots of success in the IWRG until one by one they began losing their masks. Mega later became Oficial Factor, Omega took on the masks of Arlequin Rojo and Spartan and Ultra Mega became Fierro.