This tool is incredible!
I would like to start it right after the next os starts to replace the default launcher. But when I start my game, the Jetman sprite is corrupted. You can download the demo here to reproduce it: https://maciej3322.itch.io/fred-in-space
Also, it asks if you can launch the next file - it would be cool if it would just start it without asking.
The idea is to use it as we did in 2000 with PCs with DOS.