神风背包，用于自杀式攻击，攻击者运气好能活下来。
总共有两种自爆背包，一种是普通的，另一种是跳跃的，跳跃的比较贵
2024.2.25 增加了EMP版本的
Kamikaze backpack, used for suicide attacks where the attacker is lucky enough to survive.
There are two kinds of self-exploding backpacks in total, one is ordinary, the other is jumping, the jumping is more expensive
2024.2.25 add EMP backpack
