You click on the brown box and then solve the math problem. You win if your opponent has 0 HP, and you lose if YOU have 0 HP. Your character is Burnewt, a fire element pet and your opponent is Creela, a water element pet.
I like playing Prodigy, so I decided to make this thing. I personally play Prodigy an AWFUL lot xD Thanks Di523237 for the scripts and thanks Prodigy Wiki for the images I used.