I love what you did with the theme! And I liked that you had to hatch the egg by clicking it. Made me feel some nostalgia.
I think it's really cool and has potential but either I misunderstood some parts OR the game is not balanced enough. No matter how hard I tried to keep my kaiju alive I died pretty fast. I got up to about 30 % before I died...
It must be possible to evade the attacks somehow or maybe recover some health faster... I'm not sure.
In any case I enjoyed playing this :).