BMX Air Master was the only game released by TNT Games for the Atari 2600
In this game, you ride your BMX doing various tricks. The tricks are done in events of half-pipe, quarter pipe and ramps. Some of the tricks you can do are loops, rotate, flip, and bounce. In practice mode, you can select which event to do. In arcade mode, you do the events in a set order.
In advanced mode and later levels, you have to hit the ramp/pipe at more precise angles coming down and gravity and pedaling get harder.
BMX Air Master was the only game released by TNT Games for the Atari 2600. It was released in 1989. In 1990, Atari Corp. bought the rights to the game and released their own version of the game. The Atari version is much more hard to find than the TNT Games version.