毛球世界

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游戏世界乃二维矩形舞台，布满方块网格。玩家互动于其上，尚有碰撞、子弹与开关。

边界方块

If tiles are placed on the border of a map, they will repeat infinitely in the game world. Example: A tile placed at X: 0, Y: 4 results in tiles repeating infinitely to the left.

Killbox

The game world is contained within a killbox, which starts 200 tiles past the border in each cardinal direction. The killbox is made up of kill tiles, but are unique in the sense that they share the standard DDRace tile hitbox rather than a kill tile hitbox. Any projectiles (grenades, bullets) will have their lifetimes ended upon impact with the killbox. This allows one to Grenade jump using the killbox as a "wall".

Border tiles take precedence but will not overwrite killbox tiles.

Although it may seem possible to skip past the killbox with a tele laser, any tees past the killbox border will automatically be killed, even if they are positioned past the visual killbox.