MouseTrap  
I love Minesweeper and this is a fun clone of it. One thing that would have made it a nine/ten would be the ability to check all tiles around a number when the right number of flags are near it. Not being able to do that made the game take a little longer than original Minesweeper.

Super Minesweeper  
A very fun game with a lot of nice new twists on Minesweeper, while still feeling like Minesweeper. The effects are good too. The only thing I didn't like was the GUI, the rest was good.