Try to collect as many coins as you can. Jump: Clicking, spacebar or arrow up. Springs make you jump higher.
Sound effects: Springs: An option from the folder, "Effects" between the basic Scratch sound effects. Coins: A high pitch version of instrument 17 (Music Box) from the basic Scratch instruments you can choose to add to a project: The other sound effects I made with my own mouth. Soundtrack (Music): The soundtrack on the main menu in this game is called Happy Bits. It excists in three verions. Basic, Cave and Jumpie. The one you hear in this game is Happy Bits Basic. The soundtrack inside the game is just called Mushroom Jump Soundtrack. They're made in a program called Ableton Live 9. I made them both myself. The studio for Project Christmas 2016: https://scratch.mit.edu/studios/3594938/