PSA: "easy" 2000 coins and 50 souls glitch for console.
Until patched, you can unlock other things in the Krypt with the infamous "head glitch". e.g., I unlocked the door near the Courtyard that required the Dragon Amulet.
However, not all things will remain unlocked, and will even return you to the title screen, such as the locked gates with chests behind them. In fact, you'll get a pop-up message stating "There was an error contacting the Mortal Kombat server."
But some of those locked gates do reward you for unlocking them, and it's instances like these where you can make some easy money.
-In the Krypt, go to Goro's Lair, then make your way to the Kenshi's Last Stand room (where you got the blindfold).
-Go to the menu and exit the Krypt.
-Load the Krypt again, but be sure to enable the head glitch by holding X/A on your controller.
-You'll respawn in the Kenshi's Last Stand room.
-Turn around, and head down towards the left where there's a locked gate with a chest placed behind it.
-Because of the glitch, you will be able to unlock the gate without needing the item required for it.
-The error message will pop up. Ignore it for now.
-The notification that you received 2000 koins and 50 souls will pop up in the right hand corner of the screen. This will be reflected in the lower left of the screen.
-Now press X/A to return to the title screen.
-Go to Konquer, then select Krypt again. Hold X/A. Repeat.
This takes 45-50 seconds on a regular PS4 with standard HDD.
This is also very tedious, but can be useful if you're in need of some quick souls and koins and there are no other options available to you. I wouldn't recommend doing it to get 10K souls, for instance. On PC, just use Cheat Engine or something.
For comparison, doing a 1-round fight with very easy AI can still take a minute or more, as they tend to block. That fight will also only reward 10 souls (and some hearts, if you do a fatality/brutality).
So, uh... Have fun?