Long Speedrun Summit to feature speedrun of Pokémon Legends Arceus, plus an all-recruitment run of Pokémon Mystery Dungeon: Explorers of Sky

The 2025 edition of Long Speedrun Summit will be taking place from September 12th through to October 12th. This is a Japanese speedrun marathon dedicated to lengthy speedruns. Pokémon Legends Arceus will be one of the games featured, alongside a run of Pokémon Mystery Dungeon: Explorers of Sky that has an estimate of 69 hours and will aim to recruit all Pokémon. As with all Long Speedrun Summit events, it can be watched from their official Twitch channel.

The Long Speedrun Summit is a prominent series of Japanese marathons that has been held annually in September since 2020. It is considered a counterpart of the western ReallyReallyLongAThon. LSS focuses on speedruns of games that take a long time to complete even in the shortest any% categories, as well as long speedrun categories. Their definition of a long RTA (real-time attack) is 1.5-18 hours for games with action elements, and 3-18 hours for games that do not. Pokémon Mystery Dungeon: Explorers of Sky is their LSS-Q (Quon) run for the event, a special spot dedicated to runs that are even longer.

The details and expected times for the Pokémon runs in this event is as follows. Please note that these times were correct when written, but may be subject to change based on the timing of other runs or marathon-related delays. Check the full schedule to check the approximate start time for each run in your local timezone, as well as for any schedule changes and updates.

Pokémon Mystery Dungeon: Explorers of Sky
Tuesday September 16th - 10:00am (JST)
Category: Recruit 'em all No Wondermail
Expected length: 69:00:00
Runner: イカロす

Pokémon Legends Arceus
Tuesday September 23rd - 7:34am (JST)
Category: Any%
Expected length: 3:50:00
Runner: わたたま

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