I barely remember but they are just sprites without animation, navigation or physics. I think I used Godot Flecs (This is a ECS uses Entities instead Nodes) and Godot Internal Servers(These are the RenderingServer,etc... you have in oficial Godot docs). It wasn't easy so I ended using normal Nodes.🤷‍♂️

Hi! I am Phaser.js dev and I have to recommend you if you want lightweight and professional feeling, Godot exported can be like 40MB just for the engine and it isn't performant. If you choose Phaser.js I recommend using the oficial Webpack Typescript template from GitHub and the VisualStudioCode IDE