Hiii Imma give you a tip or idk if it's a tip but Change the fish's rules first get if "This collides with ur oc, and Press add sound if you want biting sounds and press Modify, and click intial Frame, then go ahead find the if and Click it again and scroll until you find drawing And press "if this gets _numeber of how many frames it gets and now press Delete
I got some tips for ya, if you want to make a cursor, go into logic, select "when this is created", and for the next one do modify, on Modify, select y position, and click the science tube thingy, and select the thingy of the players touch, do the same but with the x position, if you don't want It to be teleporting around, use smooth for both of them :)