• Compile the widescreen version of Cave Story from the source code
• Install the necessary packages:
• Compile the engine (it takes about 1 hour):
• Modified to the widescreen version:
• Edit the 225 line and save and exit the following line
• Confirm that the original version can run normally:
• Run the modified version:
• After running, press the Esc key, enter Options->Graphics, select the resolution as 1280x480, and open the full screen.
• Reinstall after confirming that there is no problem: