Here is the demo disc for Tomba! for the Sony PlayStation 1 PS1 PSOne. No manual as the demo disc did not come with one.

THIS IS THE DEMO DISC! NOT THE GAME!

I did not test it but the disc looks to be in great condition. 

The cardboard sleeve has separated on one edge...see photos. 

Check out the photos as they are of the game you'll be getting. I don't use stock photos. 

Thanks and let me know if you have any questions. Sorry...no returns, sold as-is, and I only ship to your eBay address on file.