Ammunition in Diep.io are the weapons that can be created or controlled by the player to attack other players, or AI controlled enemies. Players cannot gain experience by destroying ammuntion, but it will damage your tank.
Ammunition includes bullets, drones, traps, and, guardians. While guardians are controlled by AI in Team Death Match games. They are included here because they are player controlled in Mothership games, and becasue they don't grant the player expericence when destroyed.
Objects that cannot be controlled by players are not included in this list, and are listed under polygons.