When you start, press the green flag a couple times. Use up and down to move the right paddle. If you're playing with two players, use W and S to move the left paddle. (the menu's a bit buggy. You'll have to wait a bit after you press a button)
Arcade Mode ---------------- Arcade mode is just classic, regular pong *-*-*-*-*-*-*-*-* Special Mode ---------------- Special Mode has power-ups. If the ball hits the green circle, then the last person to hit the ball will be bigger. If the ball hits the yellow circle, the the last person to hit the ball will get smaller. And the orange circle makes the ball go extremely fast for a little bit -*-*-*-*-*-*-* Rally Mode ------------- In Rally mode, you need to hit the ball against the wall as many times as you can, before missing.