Change the sound effects?

You can, but you might run into problems with subsequent updates so you may want to turn updates off or come up with another way to deal with that.

The files you’d want to start messing with are already split out into its own file called game-audio.php

https://plugins.trac.www.ads-software.com/browser/dinosaur-game/trunk/game-audio.php

Does that answer your question?

And here’s some cool forks on github to the original game that you can browse for inspiration: https://github.com/wayou/t-rex-runner

Yes this is perfect! Just what i needed,thank you!

Happy to help! ??