Game difficulty adjustment

Window mode has been added to the title screen.
Indicators for power-up items have been added to the base.

We have identified areas that were unclear or too difficult and have made adjustments to lower the difficulty of certain stages. Additionally, the stage numbers are now displayed at the base.

We have identified some areas with heavy processing and performed optimizations accordingly.

Graphics Settings: The game now includes three selectable levels of graphics quality: Low, Medium, and High.
Controller Support: Support for PlayStation controllers has been added, allowing players to enjoy the game with their preferred PlayStation gamepads.

Fixed text errors for game language and English.

Fixed a problem in which switches in stages 2 and 3 were not responding.