nice idea with good code to realize it. There are a few bugs; - the bullets of enemy's can't attack enemy ships - The enemy ships should disappear at the bottom

You could also add constructors to 'stopper' and 'generator' to 'setImage(new GreenfootImage(1, 1));', so you will not see the green heel(s) at the top of the screen.

U have this bug in ur game which u will sometimes teleport to the side. It happened a few times on me when i was holding "a" but not when i was holding down "d", or it did but i was switching buttons and didnt realise. Other than that its fine.

@gusbus123, this is not a bug its a feature, read description: "doubleHit "a" or "d" to Blink(it has 2 sec's CoolDown)"

it also happens in this situation: you hold "a" to move left, then you let "a" up but hit it down again in a very short time(less than 0.15 sec)

??? shouldnt hitting "a" once initialize a's timing and if the timing is still going on (still time for double tap) and "d" is hit instead then the timing should stop and d's timing will start, only if "a" is hit twice without other button hit then it will blink. So u cant just hit "a" hit "d" then hit "a" again to blink left. If you know what i meen

"So u cant just hit "a" hit "d" then hit "a" again to blink left. " It just don't work~ No matter how rapidlly you change between "a" and "d" blink won't take place

Hey, it's me. My mom asked me to show her the game that you helped me with (it's been taken down). I told her that you helped me, and she thought that was really nice of you. You have earned a like.