Prehistoric Isle

A series of arcade Shot'em-Up games by SNK. Basically a side scroller shooter with Dinosaurs!

The first game, Prehistoric Isle in 1930 is set on an island in The Bermuda Triangle, the player controls a biplane, blasting hordes of prehistoric creatures, while aquiring power-ups in the form of a device that rotates around his craft blocking enemy shots and providing different modes of fire.

The sequel, Prehistoric Isle 2 is set in modern times when dinosaurs invade a city, this time the player controls a helicopter and includes the mechanic of rescuing civilians.

Tropes:

 * Absurdly Spacious Sewer: In the sequel's first level, so spacious that helicopters can fly through with space to spare.
 * A Winner Is You: While the, the sequel
 * Derelict Graveyard: The second part of stage 4 in the first game.
 * Dem Bones: One boss in the sequel is a reanimated dinosaur skeleton, the first game also features zombie pteranodons.
 * Dinosaurs Are Dragons: What's a T. rex doing at the bottom of a volcano? And why it breathes fire?
 * Epileptic Trees: Supposedly, The pilot is Billy Kane's father.
 * Everything's Better With Dinosaurs: And how!
 * Giant Space Flea From Nowhere: In the first game, the first boss of level 3: "Unknown Dinosaur", in the second game the final boss, a giant sea creature... thing.
 * Goddamned Bats: Goddamned pteranodons, goddamned giant bats, goddamned cavemen, goddamned jellyfish... and so on.
 * Jungle Japes
 * Lost World: The first game is set on one.
 * Nintendo Hard: You will die. A lot.
 * Organic Technology: The final boss of the sequel, which is a living squid-shaped-spaceship. No, not like that one.
 * Prehistoria
 * Ribcage Ridge: In both games.
 * Shoot the Shaggy Dog: The ending of the first game,
 * Stock Dinosaurs: Brachiosaurus, Allosaurus, Stegosaurus and Tyrannosaurus Rex serve as boss encounters in the first game.
 * Underground Level / Lethal Lava Land: Level 5 of the first game.
 * Under the Sea: Level 4 of the first game.