Bad Export for You: The early copies of the UK DVD release were based off of faulty masters that cut the last 20-30 seconds off of the last 3 episodes. Unfortunately, that meant The Stinger from the finale was lost as well. Thankfully subverted in that the publisher fixed this issue, with the DVD reissued two months after the original release.
Development Hell: Season 2 has been hinted by Gainax since the first ended on July, 2011. To make matters worse, the original crew has since left the show, putting the production in extreme jeopardy.
It seems that Jiraiya became a underwear eating Ghost.
In "Transwhoremers," three robots that clearly look like Optimus Prime, Megatron, and the Fallen from the Transformers Film Series appear. The first two are voiced by none other than Tessho Genda and Seizō Katō, the original voice actors for Optimus Prime and Megatron in the G1 series, respectively.