Yes yes.
Stupid idea..
But in short.
A machine which requires a paranormal amount of power to do the impossible.
It sucks the essence out of a creature when powered by redstone and alot of EU ofc..
Takes approx 1min in which time the mob is acting like it is being hurt and then when the time is up the essence of the mob is sucked into some wiring into the canning machine which shows a new item in the food slot but cant be picked up, When canned you can eat it with side effects.
Spider : Causes you to drop all inventory
Creeper : Explode on spot
Zombie : Catch on fire
Enderman : Teleport randomly within 100 blocks
Pig : Heal hp
Skeleton : You go completely hungry
Chicken : You lay a egg
Cow : You just hear a moo sound.. And skin temporarily changes to a cow player skin
Sheep : You can use shears on yourself.. And drops 3 wool.
You then use the can with the machine on yourself, And you turn into the mob until you die or click a button which appears in esc menu to kill self.
When you turn into the mob you see from their point of view and have no inventory.
The mobs can be from creeper to chicken and you get the functions that the mob normally has.
You cant right click to activate buttons or left click to destroy blocks.
If you are a spider you can climb walls and attack as normal, Though you are now 2 blocks wide and 1 block tall. View could also be fragmented?
Creepers will explode when you right click, And if you happen to walk into lightning..
A pig just walks about.
A chicken has the ability to lay eggs. With a timer between each egg.
Sheep just walks around and is able to be shorn if this is SMP
Cows walks about.
A skeleton shoots arrows unlimited but the arrows cant be picked up and he dies in sunlight.
A zombie walks about and dies in sunlight.
A enderman can pick up blocks and so on. Teleport though walls with a right click. Pick up and place blocks with left click. Each action sucks hunger. But the thing is keeping it in the chamber as its essence is stolen.
If you manage to get a spider jockey into a chamber then you get the view of a skeleton with movement corresponding to the spider.
The mobs all have a lifespan of about 5-10 minutes (Hunger bar) before they die.
The players inventory are not carried with them. But the player is stuck in the machine with his inventory.
As if the person controlling went afk. If player is dies. Inv is dropped and mob dies too.
The mobs drop their normal drops except when power runs out.
When you die you appear back in your body, No worse the wear but with hunger the same as the mob when it died.
If the mobs hunger (Power left in that mob) goes empty then it loses hp fast. It can die and if it dies you die as well.
When the mob dies you hear a ghast scream.
There could be a special armor you must wear for each transformation.
Im very aware this is most likely to not even be thought about or implemented.
Recipes are
Essence stealer
Teleporter : MFE : Teleporter
MFE : Soul Sand : MFE
Teleporter : MFE : Teleporter
Wiring
Gold : Gold : Gold
Rubber : Soul Sand : Rubber
Gold : Gold : Gold
Once the mobs are turned into a essence. Theres no way to get them back.
And in 1.9 you will not be able to breed.. That would be disturbing