You get the platinum card by finding all the dino data in the game. Some data is easy to find but some are hidden so you might need to check everything you see. Good luck finding the platinum card.
After exiting the caves,you'll find Regina.Then you'll have to go through the Flare gun mini-game which has an unlimited amount of Allosaurus'.You can use this as a credit farm!
The Allosaurus are worth 1000 points each,so the money builds up really fast.It's easier to use big weapons like the Antitank Rifle,Missle Pod,and Rocket Launcher to kill them faster.The EPS Platinum card may be needed.But as long as you keep moving and blasting the dinos, you'll be fine!
If you find a blue allo quickly equip the solid canon and blast away. after 1-3 hits the poits are yours!!! ( about 10000!!!)
Successfully complete the game once. The Dino Coliseum
allows you can fight against all of the dinosaurs from in the
game in a coliseum arena.