It was close to the evening. Your son passes by you on his way out the door, reminding you that it was game night for him and his friends. You wave him good-bye as he exits the house.
A few hours into nightfall you're heading down the hallway to your room. As you do, you come upon your son's bedroom that has its door open a crack. You take a quick peek inside and notice something hidden behind the bookcase. You enter his room and push it aside, revealing a large device.
There are two tubes connected to the device, each carrying an unconscious mamono. In the center of the device is a console in front of a large cube with a title below it that reads, Hybridizer 5000.
Just above the name is a green button that reads "Combine".
You don't know how he managed to get the device in here, or better yet how he managed to capture two mamono and drag them back here. It appears that the machine's sole purpose is to combine two existing creatures to create an entirely new lifeform.
WWYD?
(Note: The two mamono can be whoever you want.)