I’m going to get some of the game setup out of the way first so the rest makes sense. The game is divided up into a bunch of mini-maps. Most of these are unlocked and need to be purchased with the correct type of medals. There are Batman medals, Superman medals, and Justice League medals; each of these medals unlocks different types of things. You’ll need a Batman Medal to unlock the Wayne Manor map. You use a Justice League medals to unlock Central City. Medals also let you buy superhero costumes for Maxwell; each costume gives Maxwell that hero’s powers.
Central City is the only Flash related mini-map and as I stated above it is unlocked Justice League medals. That map does have a Flash Museum in it, so that is pretty cool. The story has you in a race against Professor Zoom. You have to ride on the Flash’s shoulders and stop all the traps your doppelganger throws at you. You can also unlock the Flash’s origin story. This is the new 52 version, so you have Barry’s dad going away for a crime he didn’t commit. While it isn’t s character, the cosmic treadmill is in the game. I used it in one of the random challengers when a time traveler needed to get back to their home.
I’ve done my best to look up everything that would be of interest to a Flash fan. The big surprise for me was the lack of Impulse; Inertia made it in but no Impulse. The other real surprise is Winky, Blinky, and Noddy from the Jay Garrick stories made it in. I’ve probably missed something or someone important; there are a lot of characters in this game.
The Big List: Speedsters in the game
Jay Garrick Classic, Jay Garrick Modern, Barry Allen New 52 Flash, Barry Allen Blue Flash, Barry Allen Lab Clothes, Barry Allen Flash Classic, Wally West Kid Flash, Wally West Flash, Wally West Kid Lantern, Bart Allen Kid Flash, Jesse Quick, Johnny Quick, Johnny Quick (Crime Syndicate), Max Mercury, Professor Zoom, Zoom (Hunter Zolomon), Black Flash, Lady Flash, Inertia, Savitar, Fastback, Rival
The Big List: Speedsters not in the game
Impulse, Jai and Iris West, Walter West, John Fox, Blue Trinity/Red Trinity/Kapitalist Kouriers, Speed Demon, Trajectory, The Terrific Whatzit, The Crash
The Big List: Flash related characters in the game
Henry Allen, Iris West, Linda Park West, Argus, Captain Boomerang (Owen Mercer), Elongated Man, Liberty Belle (Libby Lawrence), Winky Moylan, Blinky Boylan, Noddy Toylan, Pied Piper, Solovar, Abra Kadabra, Blacksmith, Captain Boomerang (Digger), White Lantern Captain Boomerang, Captain Cold, Chillblaine, Cicada, Cobalt Blue (Malcolm Thawne), Cobalt Blue (Chardaq Allen), Dr.Alchemy, Double Down, Folded Man, Girder, Golden Glider, Goldface, Gorilla Grodd, Heatwave, Icicle (Dr. Mahkent), Icicle (Cameron Mahkent), Kobra, Magenta, Mirror Master (Mcculloch), Mirror Master (Scudder), Murmur, Neron, Plunder, Dr. Polaris, Rag Doll (Peter Merkel), Rainbow Raider, Replicant, Shade, Tarpit, Thinker, Top, Trickster (Axel), Trickster (James), Vandal Savage, Weather Wizard, White Lightning,
The Big List: Flash related characters not in the game
Chunk, Tony Gambi, Detectives Chyre and Morillo, Nnamdi, Manfred Mota, Colonel Computron, Combine, Mr. Element, Fallout, Fiddler, Griffin, Kilg%re, Peek-a-Boo, Rainbow Raiders, Razer, Spin, Suit, Turtle, Clive Yourkin