You can only run in a game when the maker of the game puts in the gear or script for run, otherwise you can't.
find a game like sonic xd directers cut and you can run fast
Change a players Humanoid speed.
Any Source GamePreferably CS:S as most gmod users have this
If you can atleast Run Half Life 2 you can run it.
No, you do not need to be on the game you bought with Gmod to play it although you do need to have the game installed to run gmod and i also recommend having the game Half-Life 2 installed to get most of the textures and weapons and npcs and props that go along with it.
Worst? Commodore 64.
Yes
no. gmod is only for the pc.
No. Gmod is only for PC
No, the Air can not run GMod because it doesn't have a level 9 graphics card.
You need to download Gmod 9.0.4c when you start there will be 3 choose unmark the Gmod 9.0.4b and your set to go and play gmod 9 online.
Gmod 10 is a pay game. It can be purchased from the Steam store at http://store.steampowered.com It costs $10
you click the shortcut icon er the gmod .exe/file!
go to steam.com here are some links related to Gmod to help you: Steam: http://store.steampowered.com/ Download stuff to Gmod here: http://www.garrysmod.org/downloads/ About Gmod: http://www.garrysmod.com/about/ Gmod fourums: http://www.facepunchstudios.com/