Your mission, if you accept it, is to replace the score UI with a coins counter, and to design a new widget to replace the score label in the top-right corner of the screen.

You should:

1. Count coins instead of points
2. Design an interface with the coin sprite as an icon next to the coin count
3. Pad the coin count string with zeros, using String.pad_zeros()

HINTS

1. Enemies are not coins!
2. You can use a TextureRect node to display the coins icon. Also, you will have to change the code that controls the score label in the UserInterface to only display play the number of coins the player collected, instead of "Score: 500".
3. Use the built-in class reference (tutorial)

In Godot 3.1, press F4 to open the code reference (Shift F1 in Godot 3.2+).

There, you can search for the String class, then scroll down to the pad_zeros method to read its documentation.

You can use any of the methods you will find there on any String like so:

var example: = "example text"
example.capitalize()

In this example capitalize is a method of the String class just like pad_zeros.

Challenge: Use an HBoxContainer to arrange the coins icon and the coins count Label automatically.