Infinites, online screen locks, and the "2nd round flawless victory" glitches.

Anything else needs patching?

Complaints of the Flash are quite old. There is a ranting thread at the top of this forum for such content. Thank you.

I only use Flash against the AI, never online. People just abuse him too much, and lag doesn't always make his combos click together very well.

Fix Superman inf

Shao Kahn's shoulder safeness

Fix Batman's tracking so he doesn't suck

Fix Lex Luthor's semi-inf at wall

Fix the glitches in the Metropolis and Gotham City stages that cause you to get stuck inside the building on Test Your Might.

Fix the problem with Flash's spin online that allows him to get a free hit if his opponent attempted to hit him at the same time he was spinning.

Fix GL's free breaker combo's (and Kahn's too)

Fix Raiden's teleport.

Fix Sonya's pro bicycle-kick move online, the pro move usually don't connect or hits late, sometimes it will freeze the char and she's able to get another free hit.

Increase the frames on Flash's spin.

Make it so you can do Kano's Brutal Throw twice in a combo online. Also make it so his 4 mid attack isn't duckable.

Fix Scorpion and Sub-Zero's combos so that you can't block in between the hits and so Sub-Zero's B4 don't whiff as much. Make it so you can actually U2 after Scorp's B3 like you can offline.

What I wish they would do:

Get rid of the damn breaker system, it's too easy to get them, it's annoying when someone gets to use 20 breakers before you beat them. Either have the rage meter build a lot slower, or get rid of the breakers entirely. You shouldn't have 20 extra chances if you screw up and get hit.

Rage I don't mind, it actually makes the game a little interesting, but some people can combo off the Rage aura hit, so that might need to be fixed. RECs are fine.

Make the game entirely 2D instead of 3D. Fix jumping and U2.

Give Kahn and Darkseid Fatalities.

Raiden's superman move needs tracking correction. I can step at close to a 45 degree angle outside of his plane and he'll still hit me with it. It should completely miss.

Use the Search Feature next time.