If you press the "ESC" key during the game, the pause menu has an option to quit the game.
Cheers!
I just realized that I had not tested my .exe before uploading and there is an issue, (forgot to uncheck the 1st scene in my unity build settings). I can't reupload due to the jam ratings going on but i'll see if I can upload a corrected version on the Matsuri Mecha page. Thanks again for testing and finding this "bug". Cheers!
Here is a link to the correct version on google drive...
https://drive.google.com/file/d/1XE-fpFKmcY5699epwACyVqZ2heokpk1J/view?usp=shari...
Thanks for the comments again. The game is basically a mech running and flying around a Japanese city. There is really no enemies, no collectables, just explore the city in a mecha. I hope to add more to it in the future.