Of course, you should provide images (portrait, thumbnail and stand animation), but it's simply something that fill command line arguments for mugen.exe
I created a launcher for the quick versus feature of MUGEN (command line).
Project source: https://github.com/mugen-launcher/quick-versus
Features:
- Training mode (player versus computer)
- Versus mode (player versus player)
- Organize your characters by category
- Choose the number of columns for your grid
- Scrolling grid
- Random selection for all the characters
- Random selection for category characters
- Custom background image
- Custom sounds
- Select character style
- Select character color
- Select AI level
- Select stage
- Responsive