Kega Fusion fixes (smooth fullscreen and DPAD = LStick)

Here is an all in one solution for good old Kega Fusion emulator (Sega SG1000, SC3000, Master System, Game Gear, Genesis/Megadrive, SegaCD/MegaCD, Sega PICO and 32X) on modern systems (2025). I created this because with my new rig (ASUS ROG SCAR 18 G834JY with 4090 laptop, G-Sync and Advanced Optimus) I had some issues playing it as I remembered on newer Windows 10/11, and because the other "solutions" I've read were simply wrong or for old systems and didn't really fix smoothness in fullscreen (this old emulator uses a mix of DDraw and DX7).

This will definitely fix the emulator running in fullscreen at max speed, and super-smoothly (especially with G-Sync) and will also make DPAD input = LStick (so you can use both at the same time with your gamepad).

📦Download and copy these files next to Fusion.exe.

Enjoy!

Credits, 3rd party software:

• samuelgr/Xidi
• narzoul/DDrawCompat