Object created on top of object

Ok so when I push a the c key, i have it set up to where a square is created on the screen, and is destroyed a half second later. But when i try and fight the other character, if i am too close, the game freezes. if there any way to stop this and still detect a collision between the square and the other player?

Sound like there are a never ending loop, causing the game to freeze.

There are several ways to check for collision.

"On collision with another object" and "Is overlapping another object"