Last Christmas I discovered a German board game called "Das Verrückte Labyrinth". I just got a new job that is forcing me to learn Flash, so I made a video version of it.
http://spaghettilogic.org/labyrinthOn each turn, you slide a row or column of light-grey tiles by clicking & dragging the mouse, then click the place where you want your guy to move. If you touch any goodies on the way, you'll pick them up. The first person to pick up a majority of the treasure wins.
It's not a faithful adaptation, mainly for ease of programming. In the original game, there was one extra piece, and you could rotate it whichever way you wanted before inserting it in a row or column. In my version, tiles just slide off one side and on to the other.
My version also generates tiles randomly, not drawn from a distribution as in the board game. This makes it possible to have "crossroad" and "cul-de-sac" chunks, not just t-junctions and l-junctions. This makes the game easier in some ways and harder in others.
Finally, the original gameplay was more like a scavenger hunt. You had a list of items and had to find one at a time.
I listed this as 100% finished because I met all my design goals (I can play it on the couch with my girlfriend as-is). If I get bored or need a break from other projects, I might add some more features.