What do you do after you defeat Greed on Fullmetal Alchemist Dual Sympathy?

Answer 1

When he jumps to "crush" you, run to the alchemy circle in the middle. When he jumps there, either pause, or be ready to tap the button that normally brings up your wall, it will put him into his "human" state so you can pound him (=D), repeat as necessary.

Answer 2

When fighting him, you'll notice that the transmutation circle on the floor occasionally turns blue for a few moments, when it does, you have to stand on it and activate it using the button in the bottom left-hand corner of the touch screen (where there's normally a wall you can make.). This will cause him to lose his shield for a bit and that's your chance to hit him and deal some damage (I suggest using alchemy). If you have many Flamels (the cross with the snake, wings, and crown on the back of Ed's coat) bouncing around on the touch screen, you can hold the alchemy attack button on the bottom right to make the attack more powerful, but only if it's the special attack of the character you're playing as, such as Ed's cannon or Mustang's flames.