Cross platform 2d games framework for B4X.
Some of the resources were downloaded from: https://opengameart.org/ as well as other open source projects: https://github.com/justinmeister/Mario-Level-1, https://github.com/leerob/Space_Invaders and https://github.com/ellisonleao/clumsy-bird.
The examples are used for educational purposes. Make sure to check the resources licenses if you want to use them for commercial purposes.
More information here: https://www.b4x.com/android/forum/threads/xui2d-x2-v2-0-2021.131279/