Rainbow Six Cheats (Dreamcast)

Shoot all of your bullets except one, then put in a new clip. Your ammunition will be
refilled, but you will not lose a clip. Repeat this as many times as needed for an
unlimited amount of ammunition.

While playing a game, press Analog-stick Left + D-pad Down + A.

While playing a game, press Analog-stick Up + D-pad Down + A.

While playing a game, press Analog-stick Right + D-pad Down + A.

Find terrorists 
  Always check your radar for terrorists before entering a room. Terrorists turn red
arrows on radar.

  Heartbeat sensor 
  Do not leave without giving at least one operative a heartbeat sensor.