Download the assets for the game here
Drag and Drop your assets in your res:// folder
In Project => Project Settings => General
Locate the Rendering section
Set the Default Texture Filter to Nearest
This keeps edges sharp for pixel art
This game will have different collision objects which interact in different ways. Godot has a layer system to help organize them. It makes more sense if we name each layer. This is done in:
In Project => Project Settings => Layer Names => 2D Physics
Map the controls as shown