Does Articuno flee when you battle them in the game Pokemon platinum?

Yes, Articuno has a chance to flee during battle in Pokémon Platinum.

Here's why:

* Legendary Pokémon: Legendary Pokémon, like Articuno, have a higher chance of fleeing than regular Pokémon.

* Difficulty: In Platinum, the difficulty of the game increases, and the chances of legendary Pokémon fleeing are generally higher.

It's not guaranteed that Articuno will flee, but it is a possibility. You'll need to be prepared for this and try to catch it quickly if it does try to escape!