Sorry funadesu, I have tried the game on many computers and it has worked fine on all of them, I do not know why it won't work for you. I hope my translation is correct Please tell me what your error reads, and what happens

Good job, I loved the original of this game. However, when you go diagonal, you move faster than going up/down/left/right, and it would be cool if you could only eat fish smaller than you, like the original.