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 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 issue playing it as I remembered on Windows 10/11, and because the other solutions I've read were wrong or for old systems and didn't really fix smoothness in fullscreen.

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 aside Fusion.exe.

Enjoy!

Credits, 3rd party software:

• samuelgr/Xidi
• narzoul/DDrawCompat