The Splatter medal is obtained by hitting and killing an opponent with any kind of vehicle. It is available in all Multiplayer gametypes as well as campaign levels and Firefight maps where a vehicle is available, and has a Bungie difficulty rating of 1 out of 10. It is represented by:
- Halo 2, Halo 3 Beta: A five-pointed star with a tire.
- Halo 3: A cross with a yellow street sign, showing a person split in half at the waist.
- The Halo 3 medal also resembles the "Bob-B-Q" medal from Marathon: Durandal.
- An altered version of this medal can be seen on Sandbox.
- This sign first appeared in the series as the Zanzibar Sign Easter Egg on October 31, though the emblem's design has been a symbol of Bungie for far longer.
- Getting this medal via the Mongoose unlocks the Mongoose Mowdown Achievement, if playing on a Ranked Free-For-All Playlist (Lone Wolves).
- There is a glitch in Halo 2's multiplayer which occurs sometimes when Sword cancelling towards a player. The Sword canceller is killed and the kill is credited to the person they lunge at as a splatter.
- The medal used to represent splatter in Halo 2 now represents the Wheelman medal in Halo: Reach.
- In Halo: Reach, killing enemies with the Forklift explosion will count as splatters.
- This medal is accompanied with the message, "You splattered (player)." This is also a medal in Halo 3 campaign. It is also possible to splatter a player with an object by launching it with an explosive, or using a Gravity Hammer. You can also splatter someone by launching a large object using a Man Cannon. Killing anybody in Halo: Reach by destroying an empty vehicle will also award the player with a splatter medal. This is most commonly done in Firefight. There are three sprees (two in Halo 3) that are awarded alongside the splatter medal, which are Splatter Spree, Vehicular Manslaughter, and Sunday Driver.