So my game is basically one of those retro space invader games called space ship vs ghost the space ship is supposed to fire a laser and it will hit the ghosts atleast until i can get my code for the ghosts moving and respawining Done but Still I need help making the laser ive never made a game before

when [ space] key pressed

this is what button you press for it to activate but make sure this line of code is in the laser sprite
next you want to put

show

on it then add

glide (however fast you want it) secs to x: (the edge of the screen) y: (player y)
hide

and then in a sperate line of code

when green flag clicked
hide

and then

when [ space] key pressed
go to [ what fires it]