The app include 6 play mode:

Far view mode :
1 you stand in a far place from firework
2 if you want you can see a fireworks show
3 you can active some environment features like snow rain

3D Far view mode :
Far view mode in 3D scene

Near view mode :
1 you stand in a near place from firework
2 some firework can be lit by matchstick
3 some firework can be lit by press it

3D Near view mode :
3D scene in Near view mode

Shop mode:
1 you can select some fireworks and bring to far view or near view scene
2 you can unlock some fireworks
3 you can get free diamond

Lab mode:
1 you can create your own firework
2 you can add text or draw image to your firework