Unlock missions, exercises and Site B:
During play, press R, Right, Right, Right, Right, R

More money:
During play, press L + Up, L + Down for $10,000.

No money:
During play, hold L + R and press Down.

Full market:
During play, hold L + R + Down to restock the fossil market.

Any digsites:
During play, press Left, Down, Right, Up, L + R, L + R.

Dino immunity:
During play, hold L + R and repeatedly press Up.

Start rampage:
During play, press L, L, L, Left, Left, Left.

Blow up safari car:
During play, hold L + R and repeatedly press Up, Down, Up, Down.

Gun in safari car:
During play, press R + L, Left, Down, Right, Right.

Dino DNA at 55%:
During play, press Down, R + Up.

Kill visitors:
During play, press hold R and press Right, Left, Right, Left, Right.

Kill dinos:
During play, press L, R, Down, R, L.

Summon tornado:
During play, press Left, Up, Right, Down, L + R.

Summon heat wave:
During play, press R + Down, R + Down.

Thanks to Revolution readers Gebugs and Hooots!