This is my entry for the may gamedev.net challenge, the challenge is titled 'side scrolling shooter'. I've spent about 7 weeks on it, off and on. Been very pleased with Godot so far for my small games. After the deadline I will try and do some more work on it and try an android version, I am already using GLES 2 with simple shaders.
You can download it from here for windows and linux:
I did some blogging over the creation of it:
and you can see some videos as I progressed over making it from the beginning:
I made the models / animation in blender, and textured in my 3D Paint app. Sounds / music are creative commons.