Yeah I compared it to it in the start of this thread.
There are definitely some references thrown in (and not just with the dialogue, which throws a slew of 'em at you):
-One of the stages reminds me a lot of old StarFox SNES (complete with technicolor polygons).
-Definitely a Death Star Stage. I was waiting for a "That's no moon, it's a space station!" quote (but I didn't get it).
...and more but I don't remember 'em right now.
I just beat the game last night. There's soooo much content!
Also, just learned from the ending (I'm late to the party) the music composers from it. What an All-Star cast! It explains a lot!
Motoi Sakuraba: Tales of, Star Ocean, Valkyrie Profile, Baten Kaitos, Dark Souls, Golden Sun
Yuzo Koshiro: Streets of Rage, ActRaiser, Shinobi, Etrian Odyssey
Masafumi Takada: Killer7, No More Heroes, God Hand
Noriyuki Iwadare: Lunar, Grandia, Radiata Stories
Yasunori Mitsuda: Chrono Trigger/Cross, Xenogears, Shadow Hearts
Definitely explains why the music is so damn awesome. The arranged old tunes are just topnotch.