I don't think that the graphics are terrible. What about Boulderdash? The wall should be open at the start and end. I would take v2, but the lava design is also good when the lava was bigger and all stones had the same colour. Spoilers work for me.
To the spoiler issue: the function was a short time bugged and to cure the bug you have to edit the comment a little bit. I have added a klick with the space bar and now it works again.