The most rewarding game you've ever played?

[Nouw]

Castle Crashers. I felt AWESOME!

 

[C95J]

Call of Duty: World at War on Veteran difficulty.

The people who have achieved this feat will definitely know what challenge I am thinking of...

Spoiler: One Word

GRENADES

 

[Hamburger_Time]

Oddworld: Munch's oddysee. Played it half-way through ages ago and got stuck. Only just found it recently, played through it. MOST SATISFYING ENDING EVER!

 

[endnuen]

Splinter Cell Chaos Theory on hard, and getting 100% in every level