Wonderful mobile game with intuitive gameplay and compelling progression. The basics are brilliant, first you must go as deep as possible by avoiding as many fish as you can, then you must do opposite on the way up - catching as many as you can - before finally shooting down the fish you fished for dollars. Each step of the gameplay loop works well, and compliments the other phases beautifully well. Then, you get upgrades that make things even more interesting and keep you on the hook. <3