Sky Reaper update for March 4, 2019

The new version is released with the following updates

1. Modify bugs such as game carton

2. Adjust the brightness of the game to make the bullets more obvious

3. Adjust the difficulty of the game to make it easier for the game to pass customs

4. Increase the left mouse button to launch bullets and the right mouse button to release bombs, so as to avoid the immovability caused by keyboard and keyboard conflicts.