You can if you use mods or server texturepacks
No, Minecraft Forge is not illegal! That is why many people still use mods.
The only way to spawn herobrine in minecraft is to use mods as you cannot spawn him in vanilla minecraft.
You NEED to have downloaded minecraft to use mods. There are hundreds of mod installation tutorials for all of the most popular mods on YouTube!
No, since Minecraft was coded by Java, you can not use Adobe Flash Player. Sorry... Sources: I program Java, I work with Minecraft mods.
just play minecraft
Mods come completed, there is nothing you have to finish to use them.
YOu download them.
Google for Modstallation. You can use that software to install mods.
You can if you use mods or server texturepacks
NOPE
Yes, you can download and install mods on the PC version of Minecraft, there are several gun mods you can apply.
You don't need a CD for mods. You don't need a CD for Minecraft at all.
A good way to get minecraft mods is to use Forge. With Forge, you can download mods of your choice instantly. Just download the Forge client, and you're good to go! :D
You should use forge.
Definitely
Sorry, but if you are talking about Minecraft Pocket Edition than you can use mods.