Don't press any keys, just move your mouse left or right without pressing it to move your paddle. The bot opponent will try to serve back, earning points just like you while doing so. But beware: if the time runs out and reaches 5:00, or the bot scored 15 before you, you're toast. Unless you reach 15 in time, before the opponent.
School Project: All sprites and backgrounds were either taken from the Scratch library or drawn/edited by me.