Boaz Returns - "Dodgeboaz" Achievement/Trophy

This one requires you to "evade all of Boaz's projectiles without attacking her during the shelling phase." That is, the part of the fight where she launches blobs of green goo from the venom sacs on her sides. You can unlock this achievement/trophy during any of the "shelling" phases, but it's a bit easier if you attempt it as soon as the level loads.

If possible, quick-save as soon as the level begins. Draw the Boran X. From the starting position, run forward a few steps (so Kurtis takes aim) and start shooting at Boaz's human head, which is in front, between the four sharp claws and below the fanged mouth.

When she lunges toward you, quickly backflip away. Then continue shooting. You can tap the fire button rapidly to shoot faster than you would just holding the button.

You'll notice her health bar depletes and green liquid sprays from her wounds when your shots are connecting. Don't waste bullets firing at the armored bug parts. The goal is to do a lot of damage quickly without letting her back you up against the wall.

If you only hit her a few times, instead of moving directly into the "shelling phase," she'll spew a geyser of green slime from her main mouthpart. This doesn't poison Kurtis, but it can knock him off his feet and make the fight last longer than necessary. If this happens, either reload and try again or side flip out of the way. As long as you're standing alongside her, and not directly in front, the geyser should miss Kurtis. Then start the process again by shooting at her human head.

If you can manage to take about 1/4 of her health right away, by shooting at her face, the "shelling phase" will start. As soon as she begins lobbing green goo from the venom sacs on her sides, stop shooting. (Attacking during this phase will negate the achievement.)

Side flip twice to avoid being hit by the toxic blobs. (You need to keep your weapon out in order to do flips. Just take care not to fire.)

After the second side flip, Kurtis should hopefully land clear of the goo.

If things are going well (no damage given or received), put your gun away and start sprinting (or take a series of running jumps) around toward Boaz's side/back.

If you were able to trigger the shelling phase on the first try, she should still be near the center of the arena. So just continue moving around the edge of the large, metal circle. As long as you don't hesitate, the goo balls should land behind you.

As you go, Boaz's health bar will gradually refill. Just keep moving around her, staying ahead of the barrage.

When her health is fully restored, as long as you haven't given or received damage during this phase of the fight, the achievement/trophy should pop. Now, we'll actually beat her.

[Boaz Returns Walkthrough]