I'm new on this and trying how hook the timer plus the emulator

Any tip how can made this?

Thanks

Are you asking how to display the timer and the game in a video? You’ll need to use software like OBS to build a scene that captures both for recording/streaming. There are tons of tutorials online that will do a better job explaining how to use OBS than I will.

If you’re asking about making the timer start and stop automatically, that’s called an autosplitter and those needed to be coded by individual communities so not every game has one. Those also tend to be for PC games, bit games running on an emulator so you’ll probably end up splitting manually for your game.