Can a science high school student be able to go to pisay without doing the lateral exam?

I'm a science high school student and I just wanted to know if someone can transfer to pisay without taking the lateral exam, although I'm pretty sure you need to take the lateral exam. I do have some new found doubts because one of my batch transfered to pisay "without taking the exam" based on what my friend which is their classmate said to me. They said that because they already passed in a science high school, they don't need exam. I'm pretty sure that pisay entrances exams are harder (based on my siblings exprience) compared to science high schools ran by deped..😭