Geometry Dash Demake with level system, basic physics engine, coyote time physics and basic UI.
I am making real ship, ball and ufo physics! After full engine polishing, there will be UI and Scratch-based editor
Download a release (or pre-release to stand in the middle of releases) Drop to SD Card/apps/Games and also...
Drop some .gflvl levels in SD Card/apps_data/geometry_flip in order to actually play.
.gflvl files are basically text with some small things to make a level for the game.
Check the wiki.
For example, my repo includes a Testing.gflvl as an internal-usage mechanic test. Maybe I will add some levels
Clone and ufbt.
I am not a gamedev. Flipper programming may be easier with Python... But I must struggle with C.