Here we are going to make particle system for our player. I used two particle system for the effect. create a particle system and set it as a child object of player. you may right click on the player game object from the hierachy and effects>particle system. Here is the setting for my particle system.
size over life Time
For the second type particle system make another particle syste from effects>particle system. name it as trail. Here is my setting for particle system.
size over life time
I used a material named plus. Here is the setting for "plus" material.
I used a directional light to cast shadow of walls of the maze.
Here is the setting for directional light.