Game content expansion, new experience 1. Add breeding system 2. Add wild monster and boss 3. Extended stall 4. Add some vehicles 5. Add subway system to the whole map 6. Add hotels to the full map 7. Add bodyguard system 8. Add battle details 9. Add some items and auxiliary items 10. Add light and shadow effects such as explosion and environment 11. Partial data adjustment
Game upgrade
1. Add multiple overtaking vehicles 2. Picture effect upgrade 3. Add domestication function 4. Head up display function