LDRU by mollrow 2013-05-01T09:56:00
Compiled fine for me, Win7 64bit with 64bit JDK7. Your graphics bug was having a
Display.update();
call in your render(), along with a second call immediately after. Display.update was drawing to and updating the screen correctly in render(), but the second call was (.. I think? not entirely sure) swapping buffers and displaying exactly nothing. Then doing Display.sync(60) made it wait with that blank screen being shown, which is why it appeared blank for some users rather than flickering.
I haven't used Git and don't have it installed, so I can't commit a fix or anything, but it's line 330 in your Game.java
As far as the game goes, I enjoyed it! It was a bit hard to understand that if you roll/bounce/fly off a surface, you cannot control your movement, though. Also detecting when the ball goes off the screen and letting the player know that the level becomes unwinnable at that point may be a good idea.