Pros: 

1. Cute 18+ furry short and sweet about a boyfriend who becomes giant after you found a glowing green rock.

2. Name input.

Cons: 

1. Didn't feel a sense of scale of Niko from the visual aspect of the Visual Novel, The author didn't mention any height in the text(my theory is that he became 10 feet tall), they only showed the apartment background in the giant scene(There is no implication that my character has shrunken and they Niko has grown), and the game contains no CGs to imply his sense of scale(there are movement effects that could give that illusion but nothing else). 

I love the plot, but didn't feel the sense of scale much. So I will give it a 3 out of 5 instead of a 2 out of 5.