Sonic Runners Adventures is an endless runner based on the classic Sonic games of the past.The three main protagonists that you are able to utilise are Sonic, Tails, and Knuckles. For the most part they all control the same but each character has their own special powers. Sonic can triple jump to reach higher areas and jump over wide gaps and spike pits, Tails can fly for short bursts, and Knuckles can leap forward in order to smash objects. These are all powers you should keep in mind, as each level is designed around one of their particular skills.
At the moment not all the familiar characters you would expect to see are available but they will most likely be added soon by the developers of the game. Once you have unlocked a character you can level them up to increase their performance with various power ups and their score multipliers.
Gameplay in Sonic Runners is the same as the classic Sonic games where the name of the game is repitition as you are encouraged to repeat stages again and again to memorise them and collect rewards.