1. Increased the amount of zombie experience gained when completing levels, and it is now more efficient to upgrade new zombies. 2. Limit the maximum number of negative comments on quactts 3. Fixed the problem of abnormal completion of "For Science" achievement 4. Fixed the collision issue of gas station street lights 5. Fixed the abnormal issue of secret military factory and double torrent gate 6. Fixed the issue that incorrect rewards given by the Hidden Arsenal. We have received a problem about the difficulty of catching bugs in the fifth level of the Ghost mini game, which will be solved in the next update, thank you for your feedback and support