The mechas from Gurren Lagann TV
wow just wow...at first Lagann was small, but combine with Gurren it becomes Gurren Lagann thats was cool
but later Gurren Lagann merge Arc-Gurren to become Arc-Gurren Lagann
WTF...Arc-Gurren Lagann powered up by one of the Gurren Lagann's Giga Drills similar to how the Lagann is powered by Simon's Core Drill. the size is way bigger. *godzilla eat your heart out*
but what there more, when Arc-Gurren Lagann merge Super Galaxy Dai-Gurren it becomes Super Galaxy Gurren Lagann
...WHAT THE thats hug the Super Galaxy Gurren Lagann is a Planetary in size, the Super Galaxy Gurren Lagann is piloted by a cascading interface of Simon piloting the Gurren Lagann, which is in turn piloting the Arc-Gurren Lagann which controls the Super Galaxy Gurren Lagann.
BUT WHAT THERE MORE!!! with Super Galaxy Gurren Lagann and combining of Simon and Spiral Energy with his comrades, that make the biggiest mecha in all anime Tengen Toppa Gurren Lagann
JESUS CHRIST, WTF, HOLY CRAP it Tengen Toppa Gurren Lagann the largest macha in all anime... well it not a mecha at all, it is a mass of materialized Spiral Energy on the scale of a large galaxy, but still LOOK AT IT HUGE THAT WHY IT THE NUMBER 1 MECHA ON THE LIST