Hello Stef,
I played with the breakout and the ball starting speed and direction is a bit too much unpredictable. :)
unfortunately the speed of the game which is needed for the XO is too fast for ordinary computers. Try the sar-file - in this version the velocity of the ball is reduced.
May be changing the sokoban icons would help because the holes are not hat clear to me.
Right, they are not that obvious. But try the new Sokobaenban. The graphics are much better.
Best, Robert