hold space bar to move the arrows. each arrow except one has a grow timer. if any arrow touches the purple-ish one then after a minute a sound will play for a while. you will have a slight warning because the arrows shrink when the countdown before the sound starts. press space key to reset arrow size. only do so if you get the repeated pop noise. that means reset the size
I got the idea for this project from 31aardvark's "CRAZY ARROW!!!" Go check it out!