Perform 20 anchor drives.
An anchor drive is when you stun an enemy and a blue ring will appear around them. Simply go inside the ring and spam circle to perform an anchor drive.
Achieve a 5 kill combo.
Achieve a 20 kill combo.
At first this might seem impossible, but it gets pretty easy later on. With this being said, I suggest waiting till you do the tracksuit girls mission. There are plenty of Akrid to kill and I easily scored a 35 kill combo in this area.
Score 100,000 or more in a single mission.
Score 200,000 or more in a single mission.
Complete 100 missions.
Complete 100 missions. There are about 100 different total, so you will do this by default.
Get over 50 kills in a single mission.
This is pretty much only possible on story mission 3 and is something you need to do for a challenge regardless. You might earn it earlier, but I doubt it.
Kill the Chryatis in the 「ハード・パンチ・ピンチ」 mission.
This is a pain in the ass, since he has a LOT more life than anything else in the game. While you can kill him at the start of the game (took me half an hour…), you can also return there with better gear and kill him in a few minutes. To give you a better idea of what you need to do, please check out the video below.
Break the core inside of an undeeps mouth.
Undeeps are giant worms, which have a HUGE orange spot in their mouth. For this trophy you need to break it, but don’t worry it’s pretty easy. I strongly suggest waiting for him to rush you and then anchor driving him. This should give you should time to break the core in his mouth, though you might need to do it again if you don’t break it. For additional assistance, please check out the video below.