Arena

In Brutal.io, the arena is a transparent structure in the center of the map. In the middle is a black hole, and in each corner there is a small red triangle that electrocutes you. There are only 2 entrances, one on the left and one on the right. If both of the entrances are covered by flails, you will not be able to get in unless one of these things happen:
 * The car that owns the flail dies by either gets electrocuted or running into the middle when there is not a green dotted line around it.
 * The car comes out of the arena and takes its flail away. Be careful because it may turn around and kill you.
 * You are able to push the other car's flail away. It is less effective if your flail is smaller than the one blocking the entrance.

When entering the arena, your field of view increases, allowing you to see the whole arena. Your flail gets detached. However, if you press space or life click at the exact same time, you can bring your flail inside, which is very tricky.

In the center of the arena there is a circle which has three phases.
 * Neutral, the outline is green and has some black squares facing and connecting to the black inside, and is harmless.
 * Feed, except the outline is yellow  and still has, facing, and connecting black squares. It gives amounts of food for the cars inside the arena.
 * Black hole, This time it has no outline but has purple clouds on the side. and it sucks nearby cars. If you fall inside the black hole you get deleted and the screen spirals and creates the same picture but larger and at a near angle.