Mods are edits in the games original coding to enhance gameplay or for a player to gain an advantage over other players making the experience unfair. Mods are illegal in some games but in others such as Call of Duty: Modern Warfare for the PC mods are encouraged and a dedicated server is running for these modded maps/weapons etc. to be played by other players. Okay, let's make this clear. Mods aren't illegal in games and most mods add additional functionality as opposed to simply changing the existing code. Mods are almost never done at a code level anyway, but at a scripting level instead. In multiplayer games, mods would generally get you banned from servers they're not allowed in, but most games that support mods are clever enough to load mods and unload them as appropriate. Let's also be clear about Modern Warfare. Whilst it certainly supports mods, it never truly encouraged them, as it took many updates to even allow options to show modded servers in the serverlists.
No it is not illegal.
Yes
Yes...
With a modified xbox, this is possible. Either hardware or software mods will make this possible. Otherwise, NO! Also, doing so is illegal.
No they arn't illegal. You can't get arrested for having them, but expect to get banned on Xbox Live for having them.
Mods are people patrolling the Site/games to make it fun and safe.
no
You don't computer game mods will not work on the PS3 and the PS3 USB port does not go to the games section of the PS3 hdd to allow uploading of games, add ons, or mods
No, it is not. However, it will probably not work on multiplayer servers unless this mutant mod you are talking about is a client-side mod, which is like a hack client, and would not be allowed on most multiplayer servers. If you are talking about mutant mods as "illegal by Mojang", then no.
Marvel mods are modifications or alterations made to video games or software related to Marvel Comics characters and stories. These mods can add new characters, costumes, abilities, or storylines into the game to enhance the player's experience.
No, Minecraft Forge is not illegal! That is why many people still use mods.