All I can say is: Green flag. Press the key shown on the screen. Use the letter sliders to change the letter.
I used this to experiment with the <key () pressed?> and the (costume [name]) blocks. See the code for how I used it. I used the name from the last costume of his animation. Not mobile friendly. (Plug in a keyboard with OTG) -CREDITS- Letter pack (Life of Letters) - @SkittingDays416-293s Original animation - @BrilliantGamer6 (R.I.P he's inactive) The Code - All by me!