Capcom Fighting Collection

Not sure if anyone else was confused like me. When I read the achievement description I was under the impression that you had to do 1,000 damage in one move, then was confused when nothing worked.

What you have to do is just keep attacking over and over in training mode for any game until you've done a total of 1,000 damage. There should be a damage counter in the upper right that shows the damage you've done for your last move. Just keep spamming any attack until the achievement pops.