I'm trying to get a weapon so that I can upgrade it to the maximum level like all the other weapons so that I can
unlock the super-secret boss, Emil, to get ending Y.
However, to get this weapon, I need to beat a very difficult boss. Unfortunately for me, he is level 99, while I am roughly level 70. I tried my luck at his fight, but after an arduous 25 minute battle, he whipped out a move I hadn't seen before and one-shot me.
Considering my Pod was doing 1 damage per shot and I was doing no more than 50 per hit, it's pretty obvious I need to grind some levels to at least have a fighting chance against this guy. However, enemies tend to be spread out, so I can't think of any one good place to grind levels for a while. Where would I be able to level up quickly?
Best Answer
I believe I've found the best possible way to farm levels in this game. As mentioned in this thread, the giant golden bunny statue at the front of the Amusement Park is actually a level 80 enemy.
You may have to attack it for a few minutes before it notices you and starts moving (you won't even see a health bar before then). Once it starts moving, the easiest way to kill it is by hacking it as 9S.
When I just tried this with an EXP Gain +6 chip equipped, I received 13,000+ EXP for the first hack and 14,000+ EXP for the second, then a ridiculous ~50,000 EXP for defeating it. I leveled from 69 to 74 in roughly 4 minutes.
Here's a video of the entire thing.
Side note: while waiting for the video to upload, I defeated it a second time and boosted to level 77.
Update: It took less than an hour total to boost from level 69 to 99 using this method.