Computer Simulation
| Lv1 Mythic Emblem | |
|---|---|
| Effect | R stage gains  Ominous modG stage gains  Forsaken mod, and  Active mods |
| Boss | Beyond Ego |
| Sigil | Lv1 "Death" |
| Divine |  Brain in a Vat |
| Cost |  10 Tokens
 10 Bluevein |
Computer Simulation is a Beyond mode Emblem.
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Strategy
Boss is guaranteed to be Beyond Ego, a harder version of Ego.
Once the player reaches the boss level, except for omens, all items will be effectively disabled, making the last level a pure test of skill, luck and mastery manipulation.
Or find a way to remove Stage Mods like 
Dice.
Drop Condition
The Boss in Dimension 3 of an Endless Multiverse quest should be Superego. Clearing the stage drops the emblem.
A good method to farm it would be using Ouroboros to make it winnable in one click (if you have some pathfinding), then use Magic Smoke Bomb with either Stopwatch with Heart of Steel as your last effect; or Bubble Wrap with the Magic Smoke Bomb as your last item (use Butter to rearrange if you need to). You also need some method of gaining mana like Book of Spells.
or you can use Smoke Bomb / Magic Smoke Bomb + Hydra Tail + 2x Butter
You may need to use Purify if there are any bad stage mods on it. Also Angel of Stone with Rasp can let you farm him multiple times without exiting the stage.
Notes
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