Hit Points (or, as they’re often called, HP) are a measurement of how much health your Neopet has left before you lose in the Battledome. If your HP is 8/14, then it means your Neopet has 8 out of a possible 14 points left. When your Neopet reaches 0 HP, then it can no longer fight in the Battledome and needs to be nursed back to health. You can see how many HP your Neopet currently has on the Status page.