Grey DeLisle voices Carmelita Fox and Hannha (from Hot Shots Golf)
Doing It for the Art: Superbot was handpicked and created specifically for developing this game. The team purportedly has several fighting game enthusiasts working on it as well (the lead combat designer has written several fighting game guides for Brady games). The development team team has even gone so far as to include fighting game veterans like Maj, note runs the combo-video site Sonic Hurricane Ed Ma note EVO 2007's 7th place in Street Fighter III Third Strike and 3rd in the Street Fighter IV tournament of EVO 2009 as senior combat designer and Daniel "Clockw0rk" Maniago note 5th place in 2002's Marvel vs. Capcom 2: New Age Of Heroes tournament and 3rd in the 2010 tournament; he later co-authored the Brady guide for Ultimate Marvel Vs Capcom 3 as community manager. Superbot very much wants PSASBR to be successful.
This goes further than just fighting mechanics: apparently Ken Levine himself was tasked with writing the story-line for the Big Daddyís arcade play-through. SuperBot also had Namco write Heihachiís script to keep his dialogue intact. Supposedly SuperBot will be working closely with several of the cast's original developers to maintain series flavor.
SuperBot has placed particular attention into maintaining the cast's iconic voices (Terrence C.Carson, Tara Strong, Nolan North, Sean Pertwee, J. S. Gilbert), going so far as to bring Dred Foxx out of retirement to reprise PaRappa. In fact, it'd be easier to note that the only playable character who is not voiced by one of their original actors in this game is Nariko!
There is also the matter of Seth Killian, known for his time from Capcom. You know, the one they named a boss after?
In Parappa's story mode, instead of putting him and his friends in the flat 3D style during the intro and ending, he's drawn in the style from his INCREDIBLY unknown anime, Parappa TV. They basically got the old animation team from it-or at least someone who copies it well-JUST to make sure the Parappa design is intact. Now THAT'S doing it for the art.
Kat's story mode also got this treatment, being drawn in the same comic book style as cutscenes in Gravity Rush.
Hey, It's That Voice!: Superbot went through a lot of effort to get as many of the original voice actors back and it shows.
In addition to Dred Foxx reprising Parappa, most of the cast from the series (except Katy Kat) returned as well, namely Armstead Christian as PJ, Ryu Watabe as Chop Chop Master Onion, and noticeably Kenya Hathaway as Sunny Funny, who hadn't voiced the character since Um Jammer Lammy.
The Other Darrin: Sir Dan is voiced by Stephane Cornicard rather then Medievil designer Jason Wilson. Might be a subversion since some sources state Cornicard as Sir Dan's voice actor in the first game.
Zigzagged with Jak, going from MikeErwin back to Lost Frontier voice actor Josh Keaton.
An interesting case with the Ape Escape characters. Most of them have their voice actors from the UK dubs of the series (making it the first time the voices are used outside of Europe), with the exception being the Professor, with Dan Green reprising his role from Ape Escape 2.
Outside the roster is Hades, now voiced by Matt Prescott Morton instead of Clancy Brown.
Katy Kat is voiced by Charlean Carmon, instead of Michele Burks (her VA in PaRappa 1 and Um Jammer Lammy) or Lea Alomar (her VA in PaRappa 2).
Talking to Himself: Playing Big Daddy on the San Francisco stage has Andrew Ryan effectively talking down to everyone involved in the battle, including Dr. Nefarious. Both are voiced by Armin Shimerman.
In the Japanese dub, this occurs when Big Daddy uses Flood against Heihachi; the latter's VA also provides Andrew Ryan's Japanese dub.
Vocal Evolution: Despite PaRappa having the same VA he's always had, he sounds much different than how he did in his games. This is due to the fact that the last PaRappa game came out in 2001 (2002 in America), so his VA obviously got much older during that time.
A stage featured back when the game was still being referred to as Title Fight mashed up the train segment from Uncharted with Warhawk.
Before SuperBot was formed, Sony originally wanted Naughty Dog or Santa Monica Studios to develop the game, but they were busy with their own projects (The Last Of Us, God Of War: Ascension). Sony then decided to build SuperBot from the ground up with a focus on team-members with experience in fighting games.
According to Seth Killian, a Katamari representative character was considered, but SuperBot was ultimately unable to decide how such a character would work.
According to Kojima Productions, Raiden was scheduled to have a big reveal at Penny Arcade Expo 2012, but his leak led to a more basic reveal as a preview for PAX.
The game was originally going to be a capture-the-flag game with each character being a archetype. Read here
One of the biggest removals, were the Game Changers. It took the form of an item from another series like a Buzz controller or a Hot Shots Golf flag. Picking up a game changer would have initiated the mash-up, but was removed for a more natural occurrence.
Possible final bosses could've been from specific games: the entire Helghan army, Dr. Nefarious, but Superbot wanted to find a way for you to fight Playstation itself; thus, Polygon Man was selected.
The game's title is somewhat similar to the Japanese title of the original Super Smash Bros, known there as "Nintendō Ōru Sutā! Dairantō Sumasshu Burazāzu," or "Nintendo All-Star! Great Melee Smash Brothers."
Emmett and Sweet Tooth share some lineage: Light Box Interactive who developed Starhawk was formed from old members of the now-defunct Incognito studios, who were responsible for both Warhawk (2007) and all of the Twisted Metal installments between Black and the 2012 reboot (the rest of Incognito including David Jaffe went on to become Eat Sleep Play, who would develop that 2012 reboot). Incognito was itself formed from remnants of SingleTrac Entertainment, responsible for the development of the first two Twisted Metal releases and the original Warhawk released on the PlayStation in 1995.
Including DLC and counting Cole as one character, the game's roster includes, 7 Japanese-created characters, 4 European-created (mostly based in England) and 12 American-created (mostly based in California).
San Francisco and Alden's Tower are the only two stages in which the host environment is invaded by a franchise coming from the same IP holder (Insomniac Games and Sucker Punch respectively). Incidentally in both cases it's their lighter cartoony game (Ratchet and Clank, Sly Cooper) invading their grittier franchises (Resistance, Infamous)
The moon that appears in the top-left corner of San Francisco during the Ratchet & Clank segment of the stage is the same moon used by Insomniac Games for their company logo.