As a Snorunt, it was very naughty by throwing Ash's badges and caused Max's face to get frozen, and this trait is retained even after its evolution. In Do I Hear a Ralts?, however, it also has a caring side, as it tried to help Ralts recovered quicker. As a Glalie, it later becomes an adapt battler despite type advantage, taken on Clark's Charizard & Quilava, Morrison's Metang & Tyson's Sceptile. It stopped dancing & coming out of Poke ball on its own after it evolved.
Ruby and Sapphire series
Ash caught a mischievous Snorunt whilst traveling through Hoenn. This Snorunt had trouble controlling its Ice Beam attack. When Snorunt met Ash for the first first time, it not only froze and threw away Ash's badges, but also froze Max's eyeglasses which caused Max to get frozen in the face. Then both Snorunt and Ash got lost in the snowstorm and they went into a cave. As May, Max and Brock tried to find Ash, Team Rocket suddenly appeared. After defeating Team Rocket, Snorunt requested to have a battle with Ash before giving him back the badges. It later accepted its own defeat and became a member of his Hoenn team.
Snorunt was used during Ash's battle with Juan but was defeated by Seaking's Hyper Beam. While May was competing in the Grand Festival, Snorunt evolved into Glalie in order to fend off Team Rocket and mastered Ice Beam as soon as it evolved.
Although it was newly evolved when Ash entered the Hoenn League Ash used it in a number of battles where it managed to hold its own successfully, first defeating a Charizard used by Clark. Later he used Glalie against Morrison's Metang, and after a hard battle, pulled it off and won the match for Ash with a powerful spinning headbutt. During Ash's Top 8 match, Glalie battled Tyson's Sceptile, an incredibly powerful Pokémon who, like Glalie, had won multiple decisive victories for Tyson. However they both lost after using their first moves, as their Solar Beam & Ice Beam clashed and knocked them both out.
Diamond and Pearl series
After the league was over he decided to give it a break at Oak's Laboratory. Ash was going to use Glalie against Conway in the Sinnoh League but made a quick change as Conway saw Ash was going to use Glalie.
- Spinning Headbutt
- Ice Pillars
- Glalie is the only member of Ash's Hoenn team that did not appear in a Pokémon movie.
- In the English dub of "Date Expectations!", Brock states that Snorunt "still needs to work on his Ice Beam", implying that Snorunt is male. However, this is only in the English dub.
- Glalie is currently the only Ice-type Pokémon that Ash possesses after the release of Lapras.
- Despite Froslass not being introduced in Generation III, Glalie is Ash's only Pokémon that has a branched evolution.
At Oak's Lab
At Kukui's house
At Cerise Laboratory