The swimming animation seems a bit unnatural, and the control scheme is new to me, and took some time to get used to. I died in the first level and got a game over from drowning. The character designs are interesting.
Just wondering, did you read the yellow books?
I tried to be as explicit in terms of info as possible even with my ESL English.
Yes, I read a lot of them but I decided to feel it out (which I think was a mistake) before returning to read more.