Micro Machines

Micro Machines is a free-to-play racing game featuring small vehicles driving on real-size objects. Like some of the previous incarnations in the series, each player is able to sabotage other players progress by using objects and various power-ups. The game is based on Toybox Turbos with much of the same tracks, vehicles and game modes.

The cars automatically accelerates with no way to speed up or brake manually. The player only controls the direction of vehicle as well as enabling any given power-up. Since the game is free-to-play there are a lot of optional in-app-purchases for faster leveling and progressing.