增加了游戏结束的提示，以及附加关卡的一处小改动。
Added game over prompt,and a small change in the extr level.

第六关难度有所增加。
The difficulty of the sixth level has increased.

第六关难度有所增加。
The difficulty of the sixth level has increased.

第六关难度有所增加。
The difficulty of the sixth level has increased.

用新增的道具在第六关增加了一个附加的小关卡，希望大家喜欢这个小关卡。
An additional small level has been added in the sixth level with the newly added props. Hope you likes it.

场景优化了一下（我觉得优化了），载具关卡有所修改（第六关）。
The scene is optimized (I think it is optimized), and the vehicle level has been modified (the sixth level).

调整伤害值和道具位置，玩起来更顺畅。
Adjust damage value and item position for smoother play.

增加了载具。
Added vehicle.

关卡难度有均衡性调整。
Level difficulty has been balanced.

关卡顺序有调整。
The order of the levels has been adjusted.