Missions A-2 to A-4
 
 Successfully complete mission A-1 to unlock missions A-2 to A-4. 
  
 
 
 Missions B-2 to B-4
 
 Successfully complete mission B-1 to unlock missions B-2 to B-4. 
  
 
 
 AUV
 
 Successfully complete mission A-9 to unlock the AUV.
 
 
 Dragon-SPL car
 
 Successfully complete mission A-1 to unlock the Dragon-SPL car. 
  
 
 
 Super car
 
 Successfully complete mission B-1 to unlock the Super car. 
 
 
 Tank-90
 
 Successfully complete mission B-8 to unlock the Tank-90.
 
 
 Tiger-SPL
 
 Successfully complete mission A-8 to unlock the car that Tiger Tagachi 
 drives.
 
 
 
 Yakuza car
 
 Successfully complete mission B-9 to unlock the Yakuza car.
 
 
 Music test
 
 Successfully complete all twenty missions to unlock the "Music Test" 
 selection at the options screen.
 
 
 
 Alternate view
 
 Press Down to cycle through different screen effects during a game 
 and replays. To unlock more effects, successfully complete missions 
 A-9, A-10, B-9, and B-10.
 
 
 
 Additional hidden vehicles
 
 The hidden vehicles in the game can be found by locating the "?" 
 on the map in four different missions. Mission A-4 has the police 
 truck. Mission A-7 has the taxi. Mission B-2 has the armored security 
 van. Mission B-3 has the monster truck. Other vehicles are found 
 by completing the missions, everything from sports cars to a tank 
 after mission B-9.
 
 
 
 Use any car on any mission
 
 After unlocking all cars in the game you can cycle through them 
 from both scenarios on any mission. Just scroll past one set to 
 get to the second. Be careful, as in some missions the car you choose 
 affects the opponent you will face.
 
 
 
 Monster truck in Mission A-4
 
 In this mission, you have to rescue the professor from the dump 
 truck. On your map you will see a green "?". If you can get to that 
 location, you will find the monster truck. . At the very start of 
 the mission, you will be behind the dump truck. Go to your right 
 and launch yourself off of that edge into the back of the truck. 
 That is the first hit -- you need four hits total to destroy the 
 truck. After the first hit, drive back to where you started and 
 take the U-turn. Follow the road down to the bottom and do a 180 
 turn by sliding. You should now see a fork in the road. The path 
 to the left is where you just came from. You need to take the path 
 on the right at full speed and run into the wall. This should catapult 
 you up to a little grassy area Once there, you need to find the 
 blue-looking ramp up to the elevator shaft (the elevator is on the 
 bottom floor). Do a graceful dismount with your car straight down 
 the elevator shaft. Poke around down here to find the monster truck. 
 When you see the truck, ram into it. You now need to get back on 
 the elevator (press Y button to activate) and go to the top. If 
 timed correctly, the dump truck should be making a pass in front 
 of the edge of the end of the grass area that you are now on. Take 
 a run at him as he goes by from left to right. You will bounce off 
 him and back on to the grass. Put it in reverse and take another 
 charge at him when he goes by from right to left (that should be 
 three hits total). You should be back to where the level started. 
 Hit him again from where you hit him the first time. He will explode 
 and the professor will bolt for the helipad. Go towards the helipad, 
 but instead of taking all those ramps to the top, drive around the 
 base and find the elevator. At the top, go across by dodging the 
 two cars attacking you and take that elevator to the top. Get the 
 briefcase and find the helipad. Note: Do not forget to watch your 
 time.