I think Far Cry is a very good game. My 8 yr old son and I have been having a lot of fun in unexpected ways. For example:
(1) At the level where you are suppoosed to blow up the three towers. We take turns flying the glider and have contests to see who can fly the farthest etc.
(2) The River level, which is beautiful and has some other fun stuff. Just b4 you get to the point where the river is blocked by the modular/portable bridge, there is a little pier thingy I blew up leaving a ramp next to the bank. We take turn seeing who can jump the boat farthest off the ramp. If you go off a little crooked, the physics are pretty interesting.
(3) Same level, keep replaying just to watch the 'copter blow up and crash. I like it best when I can make it blow up over the river and then watch it splash down.
For me this game has a lot of replay value. I like sneaking around in the moon-lit jungle, or sunny beach finding different ways to attack etc. Or, just hanging out in one of the pretty maps enjoying the eye candy and playing with the physics (At the fort level, shoot the chain holding up the big shark. Then try to push, shove, roll the sharl off the deck onto the beach. After that you can get it into the water with some work and use it for target practice).
Then again, maybe we're just easily entertained
Fern