Bullets

Bullets are the most common ammunition for tanks in Diep.io. They are fired from barrels and auto turrets.

In Free For All, Maze, and Sandbox game modes, your own bullets are blue, but enemy bullets are red. In the Team Deathmatch, Domination and Tag Mode game modes, the color of your bullets depends on the color of your team. Fallen Boosters fire grey bullets. Lastly, Arena Closers, Defenders, and neutral Dominators fire yellow bullets.

The size of your bullet depends on your level and the class of tank you use, as further elaborated below.

There are tanks who use other types of ammunition as well: Drones (summoned by Spawners), Traps (laid by Launchers), and Protectors (found in bases and summoned by Motherships).

Types of Bullets
Normal Bullets: Average-sized bullets that are fired from most classes of tanks, typically from normal rectangular barrels, such as that found on the Basic Tank, with no buffs or debuffs.

Large Bullets: Large bullets are used by the Destroyer, Hybrid, Arena Closers, and Destroyer Dominators. They do much more damage than the Normal and Small bullets, though they travel considerably slower (Arena Closers' bullets are exempt from the rule, and are extremely fast).Large bullets can also clog smaller bullets

Small Bullets: The Gunner branch, the Spread Shot, Minions, and the Gunner Dominators will use these. They have the weakest penetration of all of the types of ammunition, though they tend to travel fast and hit hard.

Auto Bullets: Bullets fired by Auto Turrets, have slightly bigger penetration than normal bullets, but also a slower speed and smaller size (the second smallest, as shown in the image to the right).

Multi-Shot: Multiple different-sized bullets are fired in order. This type of bullet is generally used by tanks in the Hunter branch, as well as the Sprayer and Spread Shot.

Trivia

 * If you are killed by surviving bullets from a tank that has just died, then the death screen focuses on the bullets until they disappear. Your death will be attributed to "an unnamed tank."
 * Each bullet stays alive for three seconds unless it is destroyed via impact with another bullet or tank.
 * The only exception is the bullets fired from the back barrels of the Tri-Angle, Booster, and Fighter, lasting only 1.5 seconds.
 * Therefore, bullet speed also increases how far the bullets travel before disappearing.
 * As with real world physics, bigger projectiles decelerate faster than smaller ones.