Playing this game I find myself constantly thinking, was that meant to be like that? Is that a glitch? or is it just something I'm not getting?
Stand by for examples.
1. when you get the supersize powerup it's instant death because you are taking up the full screen but there are still fish that can kill you.
2. when I move sideways the animation is glitched and the character model flits between left facing and right facing at breakneck seizure inducing speeds (at least I hope it's glitched and thats not what you were going for)
3. The speed upgrade does nothing, though to quote your website "- Pick agility and evolutions when you level up, speed is useless" so obviously you already know this
My final thought is that I appreciate you trying to update and old standard in video games but what you have added is either buggy or just not that innovative.