Minecraft Unblocked 1.9 [best] ◉ (UPDATED)
Use it only if you have no other option. Then go buy the real game.
The 1.9 update fundamentally changed how Minecraft is played, introducing mechanics that are still standard today: Minecraft Unblocked 1.9
The ability to hold items in your "off-hand" (default key 'F'). Use it only if you have no other option