itch.io

i think having a countdown timer before the game starts would help you prepare and then i'd probably increase the amount of time between each player spawning and potentially the velocity of the each of the balls. the game just operates really quickly, which is fine after a while but very jarring on first playthrough. obviously you would make it more difficult as the game goes on and that would be fine, but just an easier baseline to start on would be a great change I think personally. 

maybe start with one ball at a time in the beginning
let the player get the hang of the game,  the win and lose conditions
overall i did get the hang of it tho XD