That's a cool game Sheep. <img src="smileys/smiley1.gif" border="0" align="middle" />
Ya, trying to recreate a games mechanics when theirs no tutorial can be a bit of a challenge. I remember a couple months ago when I was trying to make a pong game. The only tutorial I found was for CC, and that was 2 player so it really didn't help. But after weeks of trying and searching these forums I found all the answers I was searching for hidden here and there, and sometimes in threads that had nothing to do with the game. lol
I think your really close to finishing your game but some stuff in your game I really don't understand how it all works. I will take another look at it this weekend. Maybe if you just added a few layers and moved some stuff around it would be a little more easier to finish.