Games on consoles or PCs can be referred to as "arcade games" if they share these qualities or are direct ports of arcade titles. Many independent developers are now producing games in the arcade genre that are designed specifically for use on the Internet. These games are usually designed with Flash/Java/DHTML and run directly in web-browsers. Arcade racing games have a simplified physics engine and do not require much learning time when compared with racing simulators. Cars can turn sharply without braking or understeer, and the AI rivals are sometimes programmed so they are always near the player (rubberband effect).