Hello! I was having no luck finding directional arrows, so I made my own. I figured I would post them in case someone else is having a similar problem. They slightly bounce up and down while fading in and out. I made a few different types, and a few different colors.
How to Use
You will place the arrows in your 'characters' folder (Save with a '!' if it isn't like that already). Make a new event, and select your arrow. You will then check the boxes: 'stepping animation' and 'direction fix'. You will want to set priority to 'below character'. The trigger can be set to 'parallel process' if it's just there to indicate direction.
Optional, you can have the arrows transport your player. To do this you do all of the above steps, but set your trigger to 'player touch' and add a transfer event. voila!