1. When two fish are staggered, launch a fishing net on them (if there are more fish coins, use 7 fish coins), and the fishing chance will be greatly improved.

Use more money to pat the tail fin of the fish, so the catching rate will be greatly improved.

If you have a laser, don't use it. Wait until the fish come, shoot sideways on the screen, and then shoot the laser at them. This will greatly improve efficiency and make a lot of money.