What is the log in beta6?
If you are willing to, I can send you the game binary with some debug, so we can locate the problem.
I have two devices one with OpenDingux and another with the old one, and both are working fine. I'm placing the game in /home/games/Rockbot
It should contain the folder "data" witch by its turn, will have "fonts", "images", "music" and "sfx" folder and "game_v212.dat", "stages_v212.dat" files.