Gurren Lagann - Episode 20 of Back Arrow has a What else?

Episode 20 of Back Arrow has a "What else? COMBINE!" Reference from Gurren Lagann. Kazuki Nakashima was the writer for both Gurren Lagann (2007) and Back

A Rewatch to Pierce the Heavens - Tengen Toppa Gurren Lagann Episode 20 Discussion [Spoilers] : r/anime

Tengen Toppa Gurren Lagann Episode 20 Reaction Mashup!!

Episode 23 - Back Arrow [2021-06-14] - Anime News Network

A Rewatch to Pierce the Heavens - Tengen Toppa Gurren Lagann Episode 20 Discussion [Spoilers] : r/anime

DECISIONS MUST BE MADE GURREN LAGANN EPISODE 20 REACTION

Back Arrow - Episode 20 discussion : r/anime

Viral, Tengen Toppa Gurren Lagann Wiki

Gurren Lagann (TV Series 2007) - IMDb

Which mecha anime is better to watch first Code Geass,Gurren Lagann,Neon Genesis Evangelion? - Quora

Back Arrow - Episode 20 discussion : r/anime

Back Arrow - Episode 20 discussion : r/anime

Spoiler] Kill la Kill X Tengen Toppa Gurren Lagann : r/anime

Gurren Lagann – 13 – Random Curiosity

Viral, All Worlds Alliance Wiki

Back Arrow Anime Streams Video Highlighting Principality of Ryuto - News - Anime News Network