Twitter user NWPlayer123, using an exploit, has datamined Splatoon and discovered a large amount of content that is yet to be released on the disc. The largest pieces of information gleaned from the dump include a large amount of unreleased weapons and two unreleased maps. Not all of the weapon data appears to be complete, and some may not even appear in future updates as games will frequently include unused assets on the disc that never actually appear in the game.

One of the new maps, Skyscraper, appears to be the map shown briefly in the Splatfest announcement trailer. Splatfest itself was recently pushed back by Nintendo due to connection issues with matchmaking. You can find the full text of the weapon dump below, as well as some images of the maps found. Consider this speculation for now, as not all data may be released publicly.

  • Sploosh-o-matic – Squid Beakons & Killer Wail
  • Neo Sploosh-o-matic – Point Sensor & Kraken
  • Neo Splash-o-matic – Burst Bombs & Inkzooka
  • N-ZAP ’89 – Sprinkler & Inkstrikes
  • Custom Dual Squelcher – Squid Beakon & Killer Wail
  • Luna Blaster – Ink Mines & Inkzooka
  • Luna Blaster Neo – Splat Bombs & Bomb Rush
  • Range Blaster – Splash Wall & Inkstrike
  • Custom Range Blaster – Splat Bombs & Kraken
  • Rapid Blaster Pro – Seekers & Inkzooka
  • Rapid Blaster Pro Deco – Disruptors & Killer Wail
  • L-3 Nozzlenose D – Burst Bombs & Kraken
  • H-3 Nozzlenose – Suction Bombs & Echolocator
  • H-3 Nozzlenose D – Point Sensor & Inkzooka
  • Carbon Roller – Burst Bombs & Inkzooka
  • Carbon Roller Deco – Seekers & Bomb Rush
  • Inkbrush Nouveau – Ink Mines & Bubbler
  • Octobrush – Squid Beakons & Kraken
  • Octobrush Nouveau – Splat Bombs & Inkzooka
  • Bloblobber
  • T_BigBall_Strong01
  • Triple Bloblobber
  • T_BigBall_Diffusion01
  • Bomlobber
  • T_BigBall_Launcher01
  • E-liter 3K Scope
  • Custom E-liter 3K Scope
  • Bamboozler 14 Mk I
  • Bamboozler 14 Mk II
  • T_Gatling_Standard00
  • T_Gatling_Standard01
  • T_Gatling_Hyper00
  • T_Gatling_Hyper01