ohhh nega-daisy... I have a lot, but you know what game really brought me into the sandbox games, The Godfather on Wii. That was fun. almost, too much fun.. uh oh, do i need to see a shrink now?
Same thing happened for me during my time with the game, and even after finishing it. It happened all over again once i completed Scarface Wii, which i actually enjoyed more than Godfather. Then again i have a bias towards Scarface cuz of the soundtrack; there nothing like avoiding the police thru miami streets with happy go lucky 80s music on my custom playlists

The scary part is, since i already had a lot of that music on my ipod and listen to it in the car, if one of the songs from the games soundtrack came on, i'd wanna do all the little things i found fun in Scarface like speed in and out thru traffic, pull off jacknife turns and shout obsceneties to strangers lol
Every now and again i tell myself "man, i gotta get another tiger"
Oh, and to get back on topic these are the M rated games i have in my collection (off the top of my head, so i might be missing a few)
Resident Evil 4: Wii Edition
Resident Evil: Umbrella Chronicles
Godfather
Scarface
Manhunt 2 (same reason as someone on the first page, to try and get rockstar support on Wii. Oh well)
I feel like theres one more but i can't think of it..