Use the arrow keys to move. You are the black square The green acid will kill you. Do not touch it! The purple will make you jump even higher. The yellow square is the end of that level. You have to press the red octagon to stop the scripts.
Thank you SO much to @jromagnoli who came up with the no variable platformer. I find platformers really tricky so I borrowed the script to make a game out of it. I have changed a few bits and pieces to make it into my game. Coding - jromagnoli Music - Vexento (Masked Heroes)