It would be interesting to read a bit about the background. Why this project? Just to learn Godot? Or do you think Godot is a better fit for this project? Some comparison (e.g. with respect to code organization, or other aspects) would be interesting.
Also, what is the state of the project? Is it fully playable already?
I made this project because I wanted to revitalize SuperTux, there's tons of things in the game that I notice and wanted to improve upon so basically I tried to re-create the game and its engine, and improve and revamp things as I added them to my version (e.g. Trampolines not killing Tux when they fall on him and being able to align to walls, Wind having better particles, better enemy animations and sprites).
Currently I haven't touched the project in a while because I've been uncertain if it's worth moving SuperTux to a new engine when it'd negate everyone else's progress on the game, and Godot is seemingly less flexible with something like C++ and getting level files and custom things to work is tricky to work around.
I learnt Godot while making the project, and I wouldn't have gotten nearly as far as I did without people helping me do specific things, there were a number of times I got stuck on various small things like placing tiles in the level editor and there's still things I'm stuck on (e.g. giving Tux a state machine, slope sliding physics, what I should make powerups look/act like).
The state of the project is pretty much playable aside from a few bugs, but there's obviously things missing like level subsets/worlds as well as enemies and features, and things like Story Mode and Add-on support (I have ideas for those but they seem hard to execute). I'm glad the project has gotten some attention, maybe I'll work on it again some time.
func _on_StartGame_pressed():
pass # Replace with function body.