You need to unlock this task on your own, fortunately, it's not a complicated process. At any time of the game, go to Miagani Island and start pulling yourself up to the roofs of nearby buildings with a hook. After one of these actions, Batman will have an unexpected encounter with a winged monster that looks like a huge bat, and this will lead to the addition of a new mission.
Get a blood sample of the winged monster
Detective mode is the best way to find the winged monster
At the beginning of this task, you need to find a flying beast. To do this, you need to get to the center of Miagani Island, bounce off the roof of one of the buildings and slide over the territory. The monster's loud scream will help you find it, as it will get louder as you get closer to it. Moreover, use detective mode, as it will make the monster more noticeable to you.
Use the slide option to get closer to the monster while flying
After you find the winged monster, you have to get close enough to it so that Batman can catch it while still flying. To get closer to him, you need to use the Batman catapult hook and increase his flight speed. After you get close to the beast, a short video will begin on how to catch the monster and get a blood sample (you don't need to interfere).
To inspect Dr. Langstrom's laboratory
Listen to the conversation with Alfred, then go to Dr. Langstrom's laboratory, which is located in Chinatown on Blick Island. Once there, enter the building and use the elevator. You can watch a movie that is displayed on the wall (this is optional). The most important thing is to examine the corpse of Francine Langstrom and interact with the computer belonging to the scientist, who turned into a huge bat.
Here you can solve a simple riddle. Depending on your needs, you will have to use one or two analog sticks (or suitable keys) to turn the DNA chains. You need to make sure that the "clean" white chains pass through the rectangles. After you have done it correctly, the percentage of honesty will increase - it must reach 100% in order for you to receive the medicine.
Inject medicine to the winged monster
The last part of this mission is very simple. Exit the lab and start gliding over the central part of Blick Island. Use detective mode again to find the winged monster and get close to it while still flying. Batman will catch the creature and inject him with medicine, but the end result will not be enough.
Then go to the northern Founders island and find the winged monster one last time. Use the slide again to catch the monster and inject it with medicine. All you have to do is take the monster to prison and place him in the seclusion of Dr. Langstrom (who, in the meantime, will regain his human form). lotto247 app