If you want to make the player move without using W/S/D/A or the arrows, do this:
All you do is make a block that represents Right, Left, and Up.
Then you do this: You get a message and a mouse click behavior. (In the right arrow’s behaviors) On the mouse click behavior, use the output down and connect it to the input send. Name the message move. Then go into the player’s behaviors and get the Mailbox Behavior ready. Name the mailbox move. Then drag the output to a number behavior’s in input, and the value of the number should be 6. Drag the output of the number behavior to a velocity behavior on the input x. Now whenever you click the sprite that looks like an arrow, the player should move right. Repeat with all the other directions except each time, the number should be 12, 6, or -6.