Thank you very much for your play and feedback; I am very sorry about this. However, I have now fixed the issues in the game and updated the interface. I would greatly appreciate it if you could come back and give it another try. Also, I made sure to fix this bug without adding any new content. Finally, the game rules are: after every 5 waves, the game will remind you whether to continue playing. If you choose not to continue, you will be able to see your score.