What boss would you like to see implemented?

I absolutely agree that there should be an Ent type of Boss Battle in Minecraft, but what I don't like the sound of is the Ent himself being triggered by hitting any sort of tree. Maybe only the Giant Trees, that'd be a lot more realistic, and the boss would seem a whole lot more frightening.
If defeated he should drop a whole lot of wood and diamonds, and maybe even a diamond axe. I don't think he should be able to send out more monsters after you, though. That'd be just plain unfair keeping in mind that there'd probably be thirty or more trees around you, and if he transforms let's say five of the trees into hostile monsters, it'd gets quite complicated.
I also think that his attack should make small craters in the ground, that'd be cool.

 

I agree, perhaps a boss on the game would make it much more interesting. There's bosses like the Wither already, but they're not that big of a challenge. There should be some sort of summon block where you can summon a boss, or even a dungeon with a boss waiting for you. In Terraria, you can summon bosses. Maybe Minecraft could use this idea too.

 

I want to see a rock giant put into the game. Where he would throw large masses of blocks at you and cause earthquake damage. It would be fun to fight I think. Ent would be awesome too, basically any form of elemental creature would be a good fight in minecraft.

 

A kraken! It could guard some kind of underground city or fortress, turning passive squids into aggressive mobs to attack the player, releasing black dye in the water to make the player's vision really bad, trapping the player in its tentacles... the possibilities with a kraken are really big and I think it's a very fitting mob forr Minecraft.

 

They need to add either a space or underwater boss fight! New portals and mini-worlds should make things more exciting and fun for everyone. Creating a potion or some kind of suit to breathe when in space or underwater can also be a thing too!

 

I think there should definitely be a boss in the Nether. I'm actually surprised that there isn't. There are Overworld and End bosses, but none for the Nether. With the creepiness of the Nether, I really do think that it needs a few bosses, at least.

 

Perhaps also in online. It would be awesome to fight a boss strategically with other people, hitting weak points and stuff like that.

 

Maybe some kind of large lava monster that throws fireballs like Ghasts. I think that would be a really cool mega boss.

 

I want to see some kind of underwater boss like a giant jellyfish or giant squid.

 

It would be cool to have an underwater boss, but not a squid or jellyfish - maybe an underwater sarlaac type of boss- it appears underwater with 4 tentacles, you hit the tentacles until the monster writhes out of the bottom of the ocean, and you hit its main body until it dies and drops some cool gear.

 

Yeah, that would also be a pretty cool idea. I think the primary drop should be a set of materials that you can craft into a variety of items instead of having the boss drop an item directly. It could also drop a random selection of armor that it has "eaten" as well.

 

I just want to see a 100-man zombie army come at you underground. That would be amusing as heck and also terrifying.

 

I also really like OP's idea of an ent. I think it would be really scary to be walking through the woods, and one of the trees turns into an ent.

 

That would be cool, but how would you implement that without it seeming out of place?

 

I would like to fight the kraken. This would be very interesting, riding a boat in the sea and BAM, a kraken appears.

 

I think a giant minotaur would be awesome. I love greek mythology so this mythological creature would be great in MC.

 

Ent would be nice but I want more like a boss type more.

 

I want some sort of strange alien god with tentacles and occult groups devoted to praising him. He shall bring forth a new age of minecraft land.

But seriously like one of the above posters said, a rock monster could be neat.

 

I'd love a boss that can only be found in the desert. Something like a big tortoise that can only be seen only when there's rain in the other climates would make the game much funner for me!