I might finish the game if I find the source file and if there is a big engulf interest for it.

The features that are missing are as follows:
0.7 - Linux and Mac builds, proper settings, scoreboard, and more small quality fixes.
0.8 - Music player and music effects based on game actions.
0.9 - More complex enemies (bosses) and a storytelling system.
1.0 - Story.