click the mode you want. either background, level design, enemy, coins, or play. if your in background mode choose the background you want. if your in level design mode chose the piece you want then place it on the background. if your in enemy mode pick the enemy you want then place it on the background. click the enemy you want again if you want another. there is a maximum of four ememies per character. if your in coin mode click the coin the place it on the background. click the coin again if you want another coin. there is a maximum of ten coins. if your in play mode use the arrow keys to move try to get to the castle. you can also move mario, the castle, the coins, and the enemies by clicking and dragging on them. (not in play mode.) don't forget to love it.