If you have issues trying to target and/or aim at enemies in Prince of Persia: The Lost Crown, then you can check out this guide at Seeking Tech to see how you can make these actions easier.
1. To start off, open the pause menu, head over to the System tab and then select Options.
2. In the Options screen, make sure you are viewing the Gameplay tab.
3. Move the menu cursor down to Melee Targeting Assist. It should have the following description:
Turn the character in the direction of the enemy when attacking.
Enable this setting so that you don’t have to worry about which direction your character is facing when executing a melee attack.
4. Move the cursor further down to Aim Assist Strength. You should see the following description:
Adjust strength of aim assist on weapons and powers that use targeting.
Make sure this setting is set to Strong if you have problems aiming.
Afterwards, exit the pause menu and then return to playing The Lost Crown. The assists should be applied to the game.