It is unknown
You have to beat the level heroes unite. then you can play as him in free play and free roam.
Since it's a demo, yes. However, you can only play for 100 minutes.
You can play the free 100 minute demo (5 ingame days), or play classic mode.
You have to finish a certain mission to unlock him
yes you can, you can unlock black mage, a cool magician when you play 10 battles.
no
The demo version of the game is free and allows you to play several levels of it.
Go to Totaljerkface.com, you can play the full versison for free :D
Yes, you can play the demo version for free, and Minecraft Classic can be played for free too.
You can get free Classic Minecraft from the minecraft website, and play the demo version there too for free.
try the demo
You can play the demo or you can go onto a site (not reccomended) and download it there for free.