This is my test of username-based saving. Basically, once you start the game, you can click the save button to save your progress. Then, when you shut it down and come back later, if you're still signed in, then you'll be back where you left off. Unfortunately, the save code will not survive the tab being closed, so if you want to keep your progress, make sure to keep the tab open. Collect as many crystals as you can! Arrow keys to move, space button to reset your progress.
Created by @TheRealRiju Music by Scratch