On this table, you need to complete 3 Dino Duels in a single game. Dino Duels are started by hitting both orbits within about 10 seconds of each other (the yellow/orange icon will go from flashing to solid when you hit one. Just hit the other one while the first one is still solid). A duel will start and the dot matrix will tell you to defeat either the T. Rex or the Stegosaurus. Land 3 attacks to win the duel. You have about 15-20 seconds between attacks or the oppenent will hit you.
-If you need to defeat the T. Rex, use either the left or right orbit or the upper right flipper to hit the ball to the bumpers. Hitting the bumpers 15 times will attack the T. Rex once. If the ball stays in the bumpers long enough you can land more than one hit, but that is mostly luck.
-If you need to defeat the Stegosaurus, hit the Spindisk (directly under the T. Rex) to attack the Stegosaurus. If the ball stays in the spindisk long enough you can land more than one hit, but that is mostly luck.
Personally I find hitting the spindisk much easier than the bumpers. Again, land 3 hits on your oppenent to win a duel. Win 3 duels in a single match to unlock this trophy.