Press the key of the letter that is on the screen (hopefully self-explanatory). Try to go as high as you can. But be warned, the further you go, the harder it gets. (Note: Visual Effects ON is somewhat broken and inconsistent, and I don't know why, so play with it on at your own risk. May be fixed, and expanded upon, in a future update)
This is just a minigame from the game Project Slayers on Roblox, but in Scratch. I thought the minigame was cool (and good practice for keyboard layout).