Start by clicking the Green Flag, then Create Button. If you are in battle when clicking the green flag, click the x button and type y then enter. Then click create. You can either click the Goombario Mode, not the Advanced Options to set anything for Mario and Enemy. Then, the goomba will give you instructions on screen. In battle, use the x button to quit, left arrow for run away, hammer for hammer attack, boot for jump attack, and mushroom for healing. When you complete it, you can edit, save, or upload. Have fun. :)
Click Play. Use Code. 30 15 99 30 0 1 0 40 1 11 4 1 Copy and Paste.