The sleds first available to the player have only minor differences, but sleds unlocked later in the game have major stat advantages, i.e. acceleration, top speed, boost, and maneuverability. Sleds are unlocked by stealing them from opponents. To unlock a sled, the player must knock their opponent off it, jump off their existing sled, climb onto the target sled, and successfully complete the level. Unlocked sleds are not lost when ditched for a newer model. Most of the sleds will also unlock if all of the levels of a certain tier of competition are successfully beaten. The tier that the sled will be unlocked on is generally one or two tiers after the first level the sled was introduced. Most of the end-game sleds cannot be unlocked in this way.