Gurren Lagann episode Eat Up, Everyone!
June 24, 2007
In the thirteen episode of the anime, General Cytomander releases a full-scale aerial attack on the Dai-Gurren and made its cannons useless by dropping bombs on them. The bombs have a high resemblance to Bullet Bills, and specifically the Banzai Bill variant.
The creators of Gurren Lagann didn't hold any right over Nintendo's Mario, but they only included a subtle reference to the series.