Pokémon Mystery Dungeon 2: Explorers of Time/Darkness/Sky is an RPG which was published in 2009 by Nintendo. It’s the sequel to the Blue Rescue Team and Red Rescue Team games, two RPGs which were released on the Game Boy Advance. I Don’t Want to Say Goodbye is a song which plays during emotional moments in the game. Perhaps the most emotional moment is when Pokémon wake up from their dream to find out that all of the Pokémon world they knew was just a false reality made by the Pokémon Pinchers, and that everyone they love has actually died. It’s then that Dusknoir speaks with them before appearing in front of them as Primal Dialga appears. The Pokémon then have 10 minutes to enter the portal and escape back to the Pokémon world. As they feel that their Pokémon friends are waiting for them, Pokémon begin rushing into the portal, but then it closes quickly. They don’t want to say goodbye. The Pokémon collapse onto a beach in tears as a few Pokémon approach them including Grovyle and Dusknoir.
As Pokémon cry within the Pokémon world, they appear to be dreaming, still on that beach from earlier as Pokémon talk about their true reality. The Pokémon see a glowing light and approach it, only for them to exit out of a warp pipe into a new place. This place is one which all Pokémon have seen before: home! They enter Pokémon Paradise and meet Pokémon such as Pokémon Friends, Pokémon Rangers, the guild members and even Wigglytuff! Pokémon start bursting into tears of joy as they all hug each other.
As for the Pokémon who were still on that beach: it turns out that the place they’re in is actually a time hole. Dusknoir appears and says that Pokémon can go home if they choose, or keep traveling and rescue other Pokémon. Pokémon thank Dusknoir before he walks away and out of the time hole while Pokémon start going in too. The Pokémon who were there all walk through the portal one by one and back to their homes and families: Pokémon such as Mudkip see their mom again, Pokémon such as Grovyle see their friends from the guild and Pokémon such as Piplup get to play soccer with other Pokémon. Pokémon have returned home and everything is back to normal… but it’s not quite time to say goodbye!
As many Pokémon are happy in their homes once again, the Pokémon who stayed behind at Pokémon Paradise continue on their Pokémon journeys and venture into a new land: the Distortion World. Pokémon keep journeying through the world to find that Dialga, Palkia and Giratina have been fused in a single beast. Pokémon battle this Pokémon and they succeed in splitting it back up! The Pokémon, however, are hurt by dark waves and enter the Pokémon world, where Pokémon such as Dusknoir and Hariyama are holding up a collapsing portal. Pokémon all head through this warp and return to Pokémon Paradise: it’s finally time to say goodbye.