Splatoon2D is a mere shell of what Nintendo's Splatoon is. Splatter ink everywhere to win. You can swim in your own ink. Hit the other person with ink and they have to respawn.
What does Splatoon2D not have?
4v4 (it only supports 1v1)
Single player campaign (you can make up your own story if you want to though)
Voice chat (no voice chat)
A bunch of weapons (only 4 weapons)
Several maps (only 1)
High quality sound effects (all the effects are ripped from youtube videos)
What does Splatoon2D have?
Choose your own color!
Bugs & Glitches!
Terrible sound effects