1. Add the final boss 2. The new gold system, in addition to attacking the enemy drop, can also be picked up in various places on the map, and after completing the game, can bring the gold out of the game into the new game 3. Added nurse "commissary", which can be entered after completing the hospital map, and players can buy upgrade items here, and the purchased upgrade ability can be brought into the new game ​ This update is a bold attempt, I hope you like it!