Was playing yesterday and was watching Shine's animation where she does her final Fairlion attack (sonic breaker maybe) and as she powered up she yelled "Fairy Shine! Shine Spark" as she rammed the enemy. This was a very cool Getter Dragon reference.
Any other cool lines like that in reference to other animes in this game?
Little kids driving carts downhill with hilarious results. Check at 1:08 for best crash. http://www.youtube.com/watch?v=5HB0wyvXFeg
Off the top of my head... some of them are from old anime's, not specifically robot animes though.
"It's like Double G vs Double G? But if you add "vs" they may end up fighting against each other later." (reference to old vs animes like MazingerZ vs Getter)
"L modes L is L for LIP!" (reference from Kabocha Wine's OP song... ahh Natsumi, my first anime character love lol)
"I wonder if he came over mountain and over hill?" (reference from Ninja Hattori-kun's OP song)
There's one that I know is from Machine Robo but I forget what the exact quote was.
"The cat is talking! What a well made robot." "The cat robot earlier, I wonder where it's pocket is?" (reference to Doraemon)
"Also when the palm trees fall over or how the pool slides open?" (reference to Thunderbirds)
"And how the rocket comes out from the building" (after Mio's quote on the Thunderbirds)
"Like maybe Great God Valsione Z" (reference to Great Mazinger, God Mazinger, etc)
"I guess it's like... See you again" (reference to Remi Shimada's catch phrase from Go Shogun)
"Aku! Soku! Dan!" (reference to Saitou Hajime's Aku! Soku! Zan! from Rurouni Kenshin)
"3-2-1, Kyousei is here!" (reference from Kamen Rider Fourze I think? when he transforms)
"Limit off, yahoooo! Get blooooown away by the Phantom Phoenix!" (reference to Infinite Frontier)
"Hey now, if you're careless you're going to get cut from the front. From there and here and from everywhere!" (reference from Baxinger's OP song)
Lots of other ones that I just can't remember right now. There's one I vaguely recall for Ultraman Taro and another for Pokemon from one of the (I think?) Youkijin grunt phrases. Should check the Japanese wiki, they have them all listed there.