Rejoice, for reasons unknown, an unknown life form has just entered your body. But luck has smiled upon you, as instead of IT winning the battle, YOU can now transform into a humanoid Daikaiju with immensely powerful abilities. The transformation can be partial or total, with more physical strength gained the more complete it is and don't fear losing control of it, it comes with total control.
All kaiju gain their powers from their Uni-organ. Yours exists in the Core, localized in the place of your heart. Your Uni-organ gives self-biokinesis and energy generation/emission.
Your body possesses immense physical strength, capable of easily lifting cars with only a part of your body transformed. You are extremely resilient, to the point of tanking shots and coming out unscathed. Additionally, you can manipulate parts of your body to create weapons or limbs, such as changing any area of your body into a jaw.
Along with this ability, you can grow in size and is able to regenerate from attacks and regrow limbs, including the regrowth of the body from the core after detaching it from the body, although them consumes stamina. While most of your powers are physical in nature, you can also emit energy to enhance your body or shoot lasers from your mouth.