The battle sequences are again very well done(this time with a shark mecha) on another note
Spoiler
There's the Alien character Lulu, though as of the end of the episode there winds up being more Ecchi style comedy than plot development on that part
The comedy was more dominant in this episode so I didn't think it clashed as much with dramatic points this time (with the exception of the solemn gathering at the beginning). That being said going forward its probably better for the show to go from comedy to drama over its course (like Gunbuster) rather than flipping back and forth during the episodes, as it can be kind of a jarring tone shift (like what happened in Gundam ZZ, Majestic Prince and My-Otome).