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Welcome the the world of Splatoon! Splatoon is a third person shooter based on claiming turf and stopping the opposing players to do the same.
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When you first start up the game, you'll be dropped into Inkopolis, where you will find a variety of other squid kids you've met online or from your friends lists.
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Currently there are three ways to play
-Online, where you team up with three other players to fight to claim turf in 3 minutes time. As you gain ground and stop players from claiming their own turf or taking yours, you gain points. When time is up, the percentage of covered turf will be tallied and one team will be declared the winner, and get an extra 300 points that go directly to leveling up. As you level up, you get access to different type of weapons and better gear. A second way to play online is Ranked Battles, where you fight to keep turf in a King of the Hill style game, fight to take a Tower to the opposite side of the map, or a Capture-the-Flag style game mode; and are ranked with a grade based on how well you do. You must be Level 10 to access this gamemode. Currently there are thirteen maps that you can play on: Urchin Underpass, Saltspray Rig, Walleye Warehouse, Blackbelly Skatepark, Arowana Mall, Port Mackerel (Added 1st June 2015), Kelp Dome (added 10th June 2015), Bluefin Depot (added 19th June 2015), Moray Towers (added 10th July 2015), Camp Triggerfish (added 24th July 2015), Flounder Heights (added 20th August 2015), Hammerhead Bridge (18th September 2015), Museum d'Alfonsino (Added 13th November 2015), Mahi-Mahi Resort (added 3rd December 2015), and Ancho-V Games (December 16, 2015). These maps can only be found in pairs and the pairing changes every four hours.
-Single Player, where you will fight the Octarians, a group of octopi based enemies who have captured the Great Zapfish, a fish that power much of Inkopolis. Fight your way through platforming levels with sponges, invisible pathways, moving platforms and much more! Be on the lookout for the Secret Scrolls, which uncovers the history of the Inklings.
-Battle Dojo, where you fight one on one with another player using a Pro Controller. One player uses the TV, while the other uses the Gamepad. Pop the most ballons during the time limit to win!
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Every Inkling must look their freshest, so getting a good outfit is what is important.
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Every hat, piece of clothing, and shoe come with at least two perks. One star gear has one perk plus one extra, two star gear has two extra and three star gear has three extra slots. As you level up by playing online your gear levels up as well, getting more perks as it gains a level. The perks are as follows:
[quote]Damage Up - increase damage of main, sub special
Defense Up - reduce damage
Ink Saver (Main) - decrease ink consumption
Ink Saver (Sub) - " "
Ink Recover Up - increase refill-rate
Run Speed Up - speed up in inkling form
Swim Speed Up - speed up in squid form
Special Charge Up - increase special guage charge rate
Special Duration Up - increase usage time of special
Quick Respawn - self explanatory
Special Saver - reduces special guage decrease afer death
Quick Super Jump- again, self explanatory
Bomb Range Up - bomb, point sensors, disruptors can be thrown farther
Opening Gambit - boosts inkling/squid speed for 30sec at start of battle
Last-ditch Effort - boosts inkling/squid speed in last 30sec
Tenacity - Fills special faster if your team has fewer players than enemy team
Comeback - Boosts abilites for a short time after respawn
Cold Blooded - Shortens the amount of time that enemies can track you with items
Ninja Squid - Leave no trace while swimming, but reduces speed
Haunt - Reveals the position of enemy who splats you to your team for a short period
Recon - Allows you to see enemy team on map while standing on respawn point
Bomb Sniffer - Reveals traps and hidden bombs
Ink Resistance Up - Reduces damage and movement penalties when walking in enemy ink
Stealth Jump - Hides Super Jump landing, but makes Super Jump slower.[/quote]
You also have weapons, which are divided into three categories: Shooters, Chargers and Rollers. Shooters shoot quickly and have a shorter range, Chargers are farer reaching but cover less turf, and Rollers are super short range but cover lots of turf quickly. The current list of weapons are as follows:
[quote]Shooters:

    Splattershot
    Splattershot Jr.
    Splattershot Pro
    Tentatek Splattershot
    Aerospray MG
    Aerospray RG
    Jet Squelcher
    .52 Gallon
    .96 Gallon
    Blaster
    Rapid Blaster
    NZap-85 (Added 1st June 2015)
    Spalsh-o-Matic (Added 12th June 2015)
    L-3 Nozzlenose (Added 16th June 2015)
    Luna Blaster (Added 23rd June 2015)
    Sploosh-o-matic (Added 7th July 2015)
    Range Blaster (Added 31st July 2015)
    H-3 Nozzlenose (Added 11th September 2015)
   Rapid Blaster Pro (Added 16th October 2015)

Chargers:

    Splat Charger
    E-liter 3K
    Classic Squiffer
    Splatterscope
    Bamboozler (Added 28th August 2015)

Rollers:

    Splat Roller
    Dynamo Roller
    Inkbrush (Added 5th June 2015)
    Carbon Roller (Added 23rd June 2015)
    Octobrush (Added 17th July 2015)

Sloshers:

    Slosher (Added 5th August 2015)
    Tri-Slosher (Added 26th September 2015)
    Sloshing Machine (Added 27th November 2015)

Splatling:

    Heavy Splatling (Added 5th August 2015)
    Mini Splatling (Added 5th September 2015)
    Hydra Splatling (Added 21st November 2015)[/quote]
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In Inkopolis, there are colorful cast of characters to be found that help you on your journey.
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Judd the cat will be the judge of Turf War, as well as give you coins while he naps in Inkopolis. The more games you win in a row, the more coins Judd will give you to spend on weapons and gear.
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Crusty Sean is the owner of Shrimp Kicks, the shoe shop. As you can tell he loves his shoes and will be willing to sell shoes to the freshest Inkings around. However, you must be Level 4 to buy from his store. His stock changes daily so make sure to check to see what he's got at least once a day.
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Jelonzo is the owner Jelly Fresh, the clothes shop. While he's still learning how to speak fluent Inkish, Jelonzo will be pleased to help the freshest Inkings buy new clothes. As with the Crusty Sean and the other shop owners, you must be Level 4 to buy from his shop and his stock changes daily.
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Annie, helped by her loud mouthed fish friend Moe, runs Cooler Heads, the headgear shop. Here you can buy not only hats, but glasses, headphones and other gear to dress your head with. As with the other shops, you must be Level 4 to use Annie's shop and stock changes daily.
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Sheldon owns the weapons shop Ammo Knights. As you rank all the way up to Level 20, Sheldon will give you access to a variety of weapons you can use. Of course you must be level 4 to get access to his shop; however the stock does not change daily and you have access to every weapon as you unlock it.
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The Squid Sisters, Callie and Marie, are the ones that will greet you everyday when you first start the game up. They announce upcoming events as well as what maps you'll be playing. They also announce what the new maps are when they change every 4 hours.
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Cap'n Cuttlefish will be your guide through Octo Valley in the single player mode, helping the player in every way an elderly squid can.
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If you see someone with neat gear in Inkopolis or are looking to make you gear a bit better, look no futher than Spyke. When you get a Sea Snail from either buying it from him or getting it from Splatfests, he can add an extra slot to your gear or reroll if you want a different perk.
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Nintendo has announced through the fall there will be updates to add more weapons, maps and gear, but did not give a date to when those things would be added. However there was a leak and some [url=http://i.imgur.com/Had6aZj.jpg]weapons[/url] and [url=http://i.imgur.com/HlbUsGe.jpg]map[/url] have cropped up.
There are also Splatfests, where the world competes in two tears to fight for the honor and glory. When you win battles, you gain points, rank up and gain a new title. When the Splatfest ends, this title determines how many Super Sea Snails you get, which can be given to Spyke to outfit your gear.
One more thing I should mention is the amiibo.
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There are three amiibo, and each have extra missions based on ones found in the single player. Each figure provides different mission types: the Squid has time based and limited ink challenges, the girl Inkling has single player missions with the Charger, and the boy Inkling has single player missions with the Roller. Completing missions gives you coins. Complete three mission unlocks a boss fight, then beat the boss for a gear piece, extra minigame to play during the waiting time in lobbies or on the arcade machine in Inkopolis, and beating the final boss unlocks a weapon based on the weapon used in the missions.

If you feel like I've missed something or correct a mistake, please let me know.