DraStic

When playing drastic on my optimus f3 i came across a problem on the app......memory every time i tried to play Pokemon or kingdom heart the app ask me to make space on my internal memory but i 665 mb free of space... sometimes i have open one ROM to play the other but Pokemon black 2 does not want to open at all....help???

Unzip the games and use the .nds files directly, then DraStic doesn't need to unzip them to the internal memory, and you won't have that problem.
You can install an app to unzip the files directly on your device (e.g. ZArchiver or AndroZip).