Smash Karts is one of the best Multiplayer kart battle games. Control your karts to collect power-ups: Bullets, grenades, even rockets, and fire other players.
Chose your region and click play. Then, one of the games starts, drive your kart in a small area with other players.
Drive over the secret boxes on the track to pick up random weapons and power-ups. Then, use the arrow keys to control and press the space to power up.
You will find anything from invincibility to bullets, grenades, even rockets. Get in your kart and fire other players. Besides weapons and power-up, you can customize your kart and characters in the customize menu. In there, you can find a selection of karts, characters, hats, use to make up your kart.