| Pokedex Entries: |
| Red | After birth, its back swells and hardens into a shell. Powerfully sprays foam from its mouth. |
| Blue |
| Yellow | Shoots water at prey while in the water. Withdraws into its shell when in danger. |
| Gold | The shell is soft when it is born. It soon becomes so resilient, prodding fingers will bounce off it. |
| Silver | The shell, which hardens soon after it is born, is resilient. If you poke it, it will bounce back out. |
| Crystal | When it feels threatened, it draws its legs inside its shell and sprays water from its mouth. |
| Ruby | SQUIRTLE's shell is not merely used for protection. The shell's rounded shape and the grooves on its surface help minimize resistance in water, enabling this POKéMON to swim at high speeds. |
| Sapphire |
| Emerald | Its shell is not just for protection. Its rounded shape and the grooves on its surface minimize resistance in water, enabling SQUIRTLE to swim at high speeds. |
| FireRed | When it retracts its long neck into its shell, it squirts out water with vigorous force. |
| LeafGreen | After birth, its back swells and hardens into a shell. Powerfully sprays foam from its mouth. |
| Diamond | It shelters itself in its shell, then strikes back with spouts of water at every opportunity. |
| Pearl |
| Platinum | It shelters itself in its shell, then strikes back with spouts of water at every opportunity. |
| Stadium 1 | It takes time for the shell to form and harden after hatching. It sprays foam powerfully from its mouth. |
| Stadium 2 | The shell is soft when it is born. It soon becomes so resilient, prodding fingers will bounce off it. |
| TCG | Squirtle: Cute Pokémon that charms people with its innocent eyes. Loves swimming all day long. |
