Slipstream Mode is an game mode in Asphalt 9. It mostly appears in Multiplayer, however some events have used this mode. In Slipstream Mode racers leave behind a 'slipstream', a trail of blue light that other racers can drive over. When driving over a slipstream, the player's nitro gauge will fill up drastically. The speed at which it fills up is even faster than the speed that Nitro Shockwave uses up the nitro gauge, meaning that players can infinitely use Nitro whilst in a player's slipstream. Driving in another racer's slipstream is called Nitrosurfing.