I'll start with the things I liked. The art is well drawn and at times extremely creepy, like when the man smiles with a huge grin or has his eyes presumably gauged out, everything looks excellent. I'm going to give props to the overall simplicity of the game, I don't really know how to describe my other thoughts on it other than by saying that it's weird but I found it interesting. There's no story, no context, just a man and some weird fish...but that's okay, because I felt that enough happened where that you can interpret the individual meanings in your own way.
The only thing that I'll say that's bad about the whole experience is that I wasn't sure when it was actually over, and now that I write this I'm not actually sure if this is a bad thing or an intentional game design choice. When the man and his boat eventually sink, the player can choose to continue fishing and I assume that this plays into the concept of repetition that you were looking to create.
I don't think I ran into bugs throughout my play time, but I have no idea.
This is a weird game, I don't even know what to rate it. It definitely succeeds as an experimental horror game and even as a psychological horror game, I wouldn't call anything that happens in it particularly "scary" but it sent my mind running wild, trying to figure out what exactly was happening at a given moment. In the end I just felt weird, uneasy and confused...but I'm guessing that's what you set out to do.
I hope you don't mind but I made a short let's play of my time with the game over on my channel.
Cheers and best wishes to you,
Killjoy