In Fish Eater.io, you control your fish using simple swipe gestures on the screen. Swiping in different directions allows your fish to move and navigate the water while avoiding obstacles and seeking out smaller fish to eat.

To level up your fish in Fish Eater.io, you must consume smaller fish and collect points. As you gain points, your fish grows larger and stronger, allowing you to eat bigger fish and explore new areas of the game.

The main objective of Fish Eater.io is to survive while growing your fish by eating smaller fish and avoiding predators. Progress through the game by continuously consuming food and competing against other players in the water.

To avoid being eaten by larger fish, stay near the edges of the water area and be mindful of your surroundings. Use quick swipes to maneuver away from predators when you see them approaching. Prioritize eating smaller fish to grow stronger.

Power-ups in Fish Eater.io can provide temporary advantages like speed boosts or invulnerability. To use a power-up, follow these steps: 1. Look for power-up icons on the screen while playing. 2. Swim over the power-up to collect it. 3. The power-up will activate automatically or may require a swipe action. 4. Utilize the effects strategically to escape larger fish or catch prey.