2D top down RogueLike

I’m making a top down shooter, a bullet hell in the style of Enter the Gungen. Questions arise at the first stage of development. What is the resolution in the ETG? What should I use viewport or cavanas_item?

https://www.pcgamingwiki.com/wiki/Enter_the_Gungeon#:~:text=Native%20480x270%20(16%3A9)%20resolution%20with%20pixel%20perfect%20option.&text=No%20framerate%20cap.&text=The%20game%20engine%20may%20allow,the%20game%20via%20its%20variables.

Your second question doesnt mean anything. If you intend to do 2d. Then node2d/canvasitem is the only option.

I think they’re actually asking what stretch mode they should use in Project Settings > Display.

I think it depends on how the game is made specifically. Enter the Gungeon is actually 3D, so it might be better to use canvas_item, but if the game is just 2D, then viewport might be better.