1. Add the cloud layer of the bamboo forest
2. Add the leaves of the bamboo forest
3. Fix crocodile's AI bug
4. Add crocodile knockback effect
5. Repair the effect of crocodile death movement
6. Add crocodile sound effects
7. Add coin related sound effects
next steps
1. Add acquisition system
2. Add bamboo drop to prepare for the new plot
3. Compose bamboo forest music