The game will be a lot more exciting if there's some risk involved.

In this tutorial, you'll create an Enemy GameObject that will chase the Player.

Let's start by creating a new Empty GameObject.

Right-click in the hierarchy and select, Create Empty.

Rename it to "Enemy."

Reset the transform of the Enemy GameObject to position it at 0, 0, 0.

You can do this by selecting the Enemy GameObject in the hierarchy

and then click on the Gear icon in the Inspector and choose Reset.

Inside the Enemy GameObject, you will create a cube

to represent the Enemy's body.

Right-click on the Enemy GameObject, select 3D Object, and choose Cube.

Name the cube, "EnemyBody."

Adjust the scale of the EnemyBody to make it a bit taller.

In the Inspector, locate the Scale values and set them to 0.5, 1, and 0.5.

Set the Position of the EnemyBody to 0, 0.5, 0,

to position it above the ground.

Great.

Now let's create a material for our Enemy

and assign it to the EnemyBody cube.

Open the Assets folder in the Project window and navigate to Materials.

If there isn't a Materials folder, you can create one

by right-clicking in the Project window, selecting Create,

and then choosing folder.

Name the folder "Materials."

Right-click inside the Materials folder.

Select Create and then select Material. 

Rename the material to "Enemy."

With the Enemy material selected, in the Inspector, 

locate the Base Map color property and set it to whatever color

you want for your Enemy.

Now simply drag and drop the Enemy material

onto the EnemyBody cube in the Scene view or hierarchy.

You now have an Enemy GameObject in the game, but it won't move around yet.

We'll get started on that next.