Make about 1500 about every 10 seconds. This guide includes a farm near the 2nd checkpoint in the Auto-Fab mission to help you get the achievement to buy all the modifications. We will be using the checkpoint exploit. If you haven't already noticed, objects or enemies you've destroyed respawn before collecting your next checkpoint. Use this quick guide to get an idea of what to do.
Checkpoint Exploit Location
Select Mission, Auto-Fab Plant
- Head to the 2nd Checkpoint.
Important: Don't destroy the box before the 2nd checkpoint
(It's technically after the box, but you get the idea)
- We will be using this box but before we do...
Remember: Don't destroy the box before collecting the checkpoint.
We will be using this specific (2nd) checkpoint to exploit & farm the box.
Now, Collect the Checkpoint.
You got the checkpoint, Didn't destroy box? Good!
Now, You're ready to destroy the box over and over again by pausing the game and hitting retry.
Doing this will make the box respawn; Since Checkpoints make a save state, you'll always have the box respawn netting you sweet money!
Notes: I recommend using the very first EX ability, Stellar Spark, to farm this as it will hit the box before you get there or even aligning yourself with the box to instantly collect all the coins in less than 0.5 seconds.
I also recommend recording/setting up a keyboard macro for this farm, assigning it to a on/off key press toggle, and refining the timing that works for you if you don't enjoy farming it yourself. Since my load times were decently fast (about 3-4 seconds) in between tries, I added a 1.3 sec delay in the beginning & 2-sec delay at the end of my macro. load times may vary from pc to pc.