Furi

You will get this trophy after beating the seventh boss. The Burst can be quite difficult and can take some time to beat. The arena is very large and during the early phases you will need to try and locate her, be careful of her drones scattered around the place as these can inflict a lot of damage. If you see a red laser locking onto you, head in the direction of it. Once you get close enough to her, get a quick shot in otherwise she might run off to another location. After you hit her, most of it will be parrying and occasionally she will deploy some drones which you will need to eliminate.

Later on in the boss she won't run away anymore and the rest of it will take place in the same arena. Keep parrying her attacks and getting any hits in as and when you can, during some of her attacks you can get a lot of shots in with rapid fire. This will inflict a lot of damage.

The last phase is very difficult and you will need to dodge a lot of things including her sniper shot and drones. Keep dodging the drones attacks and when she starts to lock onto you, hurry to cover (this will make her shoot the barrier and not you). After this you will be in duel mode with her and have to parry her attacks. Once you parry twice in a row you can quickly get some hits in.

You can also check out the video below:

Credits go to TheSeraphim17 for making the video.