Certain stages in Splatoon 3’s campaign mode can be a bit of a daunting experience, especially for those who are new to the franchise.Some hidden stages, like the Secret Kettle can be rather difficult to overcome, especially if players do not have the right tools and strategies at their disposal.Fortunately, Splatoon 3’ Alterna story mode allows one to get more powerful as they progress through the stages via the Hero Gear upgrade feature. However, to upgrade these gears and weapons in the game, players will be required to get their handles on a good amount of Sardinium and Power Eggs.Nintendo of America@NintendoAmericaTime to pick a side, squiddos! Here’s the theme for the first post-launch #Splatoon3 Splatfest: Which would you bring to a deserted island? Gear, grub, or fun? This Splatfest takes place Sept. 23-25, so get ready to make waves!153744066Time to pick a side, squiddos! Here’s the theme for the first post-launch #Splatoon3 Splatfest: Which would you bring to a deserted island? Gear, grub, or fun? This Splatfest takes place Sept. 23-25, so get ready to make waves! https://t.co/YU1Bp8sfWvOnly upon investing these resources, players will be able to upgrade their Hero Gear in the shooter. Upgrading a Hero Gear takes a good amount of Sardinium, and these are resources that players will need to pick up as they venture to clear the various stages in the campaign mode.Some of the Sardiniums are quite hard to come across in Splatoon 3. Hence, today’s guide will look to talk about all the locations where players will be able to find the resources.Obtaining all Sardiniums in Splatoon 3The Sardinium locations mentioned below will be divided into the various stages/sites of the campaign mode:1) Site 1Sardinium:The very first Sardinium that players will be able to locate will be on the northern side of Site 1, just a bit above the 'Splat You on the Flip Side' Kettle.Sardinium 2:The second one for Site 1 will be located towards the front of a Maoi statue which is to the north of the "What Caused the Big Bang" Kettle.Sardinium 3: The third one can be a bit difficult to come across as it is tucked away in the southeastern corner of Site 1.2) Site 2 Sardinium 1Thie first Sardinium in Site 2 of Splatoon 3’s campaign mode can be located on top of a metal tower which is to the southwest of "Switching Things Up" Kettle.Sardinium 2To the southeast side of the "Switching Things Up" Kettle, players will find the site’s second Sardinium on the ground.Sardinium 3The third one will be located in a breakable wooden box that is located on a platform beneath the "The Future Stares Back" Kettle.Sardiniums from The Future Stares BackThe Future Stares Back is the Site 2 boss fight, upon completing which players will get three Sardiniums.3) Site 3 Sardinium 1The first Sardinium of Site 3 will be located on a piece of land which is in the middle of an ice section located just west of the "They Said We'd Have Flying Cars" Kettle.Sardinium 2The second one is located just to the west of the "Ink Wheels-Experience" Kettle.Sardinium 3Sardinium 3 is inside a breakable wooden box in the southeastern corner of the Site. This one too is a bit difficult to come across.4) Site 4 Sardinium 1The first one can be obtained by destroying the ooze which is present in front of the submarine.Sardinium 2Players will find this one buried in the ground just east of the "Let's Put a Pin in That" Kettle.Sardinium 3The third one will be found inside a breakable wooden box that is placed next to the Splash the Block Party" Kettle.Sardiniums from The Pursuit of the PreciousThree more Sardiniums can be obtained by completing the Splatoon 3 boss fight, The Pursuit of the Precious, where players will need to beat Shiver and her Shark companion.5) Site 5 Sardinium 1Find one Sardinium by breaking the wooden box atop a platform southeast of the "Too Many Snipers" Kettle.Sardinium 2Site 5’s second Sardinium will be found buried in the ground just to the south of the "Trouble Round Every Corner" Kettle.Sardinium 3The third one is on the platform which is right beneath the "Zipping over the Neighborhood" KettleSite 6Sardinium 1The first one can be located by Splatoon 3 players on the skyscraper which is to the west of the "Bet You Mist Us" Kettle.Sardinium 2The next Sadinium can be found ner the "Mission: Fly-Fishin'" Kettle in Site 6.Sardinium 3Site six’s third Sardinium can only be obtained once players get rid of the ooze next to the "Dive and Dash" Kettle.Sardiniums from The Obscurest ChiaroscuristThree more Sardiniums can be obtained from the boss fight, after players defeat Big Man at the arena.Collecting Sardiniums and investing them to upgrade one's Hero Gear is the best way of getting more powerful in Splatoon 3’s campaign mode.