Sly Cooper! Preferably episodes 3 and 5 from the Sly 3 and episode 1 from the Sly 2.

Either DBZ or pokemon

Mario, definitely.

Who doesn't want to eat mushrooms and then fight turtles every day.

The Fallout universe, without a doubt. Second would probably be The Elder Scrolls universe, preferably Morrowind, since I remember her so well... Third, ah, probably a zombie apocalypse, check out this soon-to-be-released game State of Decay for an idea. Tied for third would be the S.T.A.L.K.E.R./Metro 2033 universe (They are pretty similar, and I'd like to keep all of the RPG elements of S.T.A.L.K.E.R., if you don't mind). After that, it would be Star Wars: KotOR, Assassin's Creed, Halo, Half-life, a more graphically refined Minecraft, The Sims with no restrictions (if you know what I mean), Age of Empires (WOLOLO), Bioshock, Silent Hill, Resident Evil, and SAINTS ROW!!!!!! in no particular order, except that I'm revising the list so that SAINTS ROW!!!!!! is now number one. Thank you for your time, and have a nice day.

Worms. =Super Sheep.

Who doesn't want to eat mushrooms and then fight turtles every day.

I'm sure you could eat certain mushrooms in the real world that could make your wish to fight turtles come true within a few hours.

Mass effect or something simple like mario or sonic...Just go around jumping on bad guys then chilling the rest of the day

I'd choose the Minecraft universe, image living in your very own giant castle all by yourself in a world where you are apparently the only hu.....
wait a second.....

I'd choose the Minecraft universe, image living in your very own giant castle all by yourself in a world where you are apparently the only hu...

All by yourself!! Now let's add some more characters into that world :D

Legend of Zelda Skyward Sword or Assassin's Creed. Both of those would be really awesome to live in, as long as you had the same skills as Link or the assassin. Minecraft would be cool too though, because you can do whatever you want.