I was thinking that you could add an upgrade / shop system for fishing rods or bait, each one changing the likelihood of catching different fish something like this…. Bamboo rod $5000, chance of catching cold ells +%10, chance of catching whales -%10 (this is example only)
or even... carrot bait, $1000, chance of catching any fish -%5, chance of catching sea snail +%10
I enjoyed this game, although it might be a little hard when you first start. I think the only improvement that I could ask for would be some kind of an indication before the monster dies "your Kyuubi is getting old and frail it could be time for retirement soon"
i thought this game was well written, it had an interesting storyline, and in my opinion relatively good graphic, although the controls did occasionally become a problem, they were easy to remember... Maybe you might make a sequel...
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