I loved the grandpa and his voice acting, for the most part the voice was pretty solid! I also loved his dialogue and the way he talked about the village. It was kind of surprising honestly. I was expecting a fast paced chaotic game where you hunt sea monsters as an old man, so it was very interesting to see that it was more of a casual conversation. Basically having a fishing trip with your grandpa except your hunting sea monsters. I do agree that the game play feels a bit slower than it should be though. The fact that you hear the monster and you have to wait until the entire sound plays to actually fire is a little frustrating. I honestly think I'd prefer it if you could fire each weapon at a whim.
Personally I think it'd be really funny if the monsters picked up in numbers really quickly, so you have to run all over shooting monsters, and the grandpa is just kinda rambling about his story as he is already used to this kinda thing. I understand completely though if that isn't the vibe. All in all this entry brought a big smile to my face.