I think that it is a problem regarding a bug may have come across inside your game and hence it is causing such a problem regarding sudden black screen appear on your cell phone. You can try this code in order to solve your problem. For this you need to start the X terminal can perform the following task.
If you can use it Opt instead of option then it will work better for you. But you try it both ways.
1. Start the X terminal from your mobile.
2. Then you will require the code as 'sudo gainroot'
3. # cd /option/spbbrainevolution/usr/bin'
4. # cd /option/spbbrainevolution/usr/bin/spbbrainevolution