There is a bug where, in the cave (really early game), if you click on one of the chests the wrong way, it keeps your character stuck INSIDE the chest lol
If you buy the Booster upgrade, you can use it to keep your line down when it is being pulled up, giving you more time to maneuver your fishing line, and therefore catch more fish.
Look.. I agree with the other comments. Do not publish a game unless it is completed to the point where you may be able to actually call it a game more than an interactive video.
Alright... I've played a lot of the levels. For one, the only controls are to walk around. Two, the only way to "beat" a level is to fall to your death. Every time you die, that's how you win the game. Waste of your time to make this.