There are few things quite as gloriously ridiculous as taking a vintage biplane into battle against an island full of prehistoric monsters. It is the sort of premise that could only have come from the golden age of arcade gaming, when developers were seemingly competing to come up with the most outrageous excuse to fill a screen with explosions, oversized enemies and increasingly frantic action. SNK’s PREHISTORIC ISLE, originally released in 1989, embraces that spirit wholeheartedly. Now returning through Hamster Corporation’s Arcade Archives 2 collection, it offers another chance to experience a wonderfully unusual shoot ’em up that has lost very little of its appeal.
The story begins with a reconnaissance mission to Greenhell Island, off the coast of the Bahamas. A series of mysterious shipwrecks has attracted attention, and your job is to investigate what has been happening. Unfortunately, the island is home to prehistoric creatures that were supposed to have disappeared millions of years ago, and they are not particularly pleased to see you. What follows is a relentless aerial battle against dinosaurs, giant insects and other dangerous inhabitants of this lost world.
It is a wonderfully straightforward setup, but PREHISTORIC ISLE does not need an elaborate narrative to justify its existence. The attraction is the action, the spectacle and, most importantly, a clever little gameplay mechanic that gives this particular shooter an identity of its own.
Taking to the Skies
At first glance, PREHISTORIC ISLE looks like a fairly traditional side-scrolling shoot ’em up. You pilot your aircraft through hostile territory, firing at enemies while avoiding incoming attacks and navigating increasingly dangerous environments. The screen is constantly alive with movement, and there is rarely much opportunity to relax as prehistoric creatures arrive from different directions. Survival requires quick reactions, good positioning and an understanding of what the game is throwing at you.
The aircraft itself is not particularly unusual, but the weapon system attached to it is where things become interesting. Your plane comes equipped with an option unit that can be repositioned to change the direction and type of attack. Rather than simply providing additional firepower, this unit becomes an important part of your overall strategy, allowing you to adapt your offensive approach depending on the threats ahead.
The ability to reposition the option unit across five different attack configurations gives the gameplay a welcome tactical dimension. Depending on its location, it can deliver attacks in different directions, including flame lasers upwards and bombs diagonally downwards. This means that simply holding the fire button and hoping for the best is not always going to be enough. You need to consider where the enemies are approaching from and position your weapon accordingly.
It is a clever idea that makes PREHISTORIC ISLE feel distinct from many other shooters of its era. There is genuine satisfaction in anticipating an enemy’s movement, adjusting your option unit and watching your chosen attack clear a path through the chaos. It also means that the player is constantly making small decisions rather than relying entirely on reflexes. In a genre where familiar mechanics can sometimes make one game feel much like another, this system gives SNK’s release a personality of its own.
A Lost World Full of Teeth
Of course, all that firepower would be pointless without something suitably unpleasant to use it against. Greenhell Island provides an excellent excuse for imaginative enemy designs, with prehistoric creatures attacking from the skies, the ground and even the waters below. The mix of dinosaurs, giant insects and other monstrous wildlife gives the action a different flavour from the more familiar spaceships and mechanical enemies found in many contemporary shooters.
The enemies are aggressive, and their attacks can quickly fill the screen. You are not simply dealing with targets politely waiting in front of your aircraft. Threats can approach from different directions, forcing you to keep an eye on your surroundings while managing your weapon positioning. This is where the game begins to demand more from the player, as reacting to one enemy can leave you exposed to another.
The larger encounters provide some of the most memorable moments. Giant prehistoric creatures make for imposing bosses, giving the action a sense of scale that works particularly well against the relatively small aircraft you control. These battles are not just about pouring as much ammunition as possible into a large target. You need to understand the danger, maintain a safe position and make effective use of your available weapons.
There is an undeniable charm to the whole concept. The idea of a biplane taking on creatures from another age is wonderfully over the top, and SNK clearly understood that the spectacle was part of the attraction. It gives the game an adventurous personality that helps it stand apart from more conventional military or science fiction shooters.
Challenging, Occasionally Unforgiving Arcade Action
As you would expect from a late 1980s arcade shooter, PREHISTORIC ISLE is not particularly interested in making life easy. The difficulty can be unforgiving, especially for newcomers unfamiliar with the genre’s demands. Enemy attacks become increasingly hard to manage, and the amount of activity on screen can make it hard to judge where the next threat is coming from.
There is also a learning curve to the weapon system. The option unit is a useful feature, but it requires the player to think about positioning rather than simply treating it as an automatic source of extra damage. Learning which configuration works best in particular situations is an important part of improving your performance. Once that understanding begins to develop, the combat becomes much more satisfying.
Power-ups and weapon improvements provide additional encouragement to keep pushing forward. They help make your aircraft more effective against the growing number of enemies, while score bonuses offer another reason to take risks and engage with the action rather than simply concentrating on survival. As with the best arcade shooters, there is a constant balancing act between playing cautiously and taking advantage of opportunities to improve your score.
The experience is relatively linear, and those expecting a lengthy campaign with branching routes or extensive progression systems will need to adjust their expectations. This is very much an arcade game in the traditional sense, designed around short bursts of intense action and repeated attempts to improve. However, that focused structure is also part of its appeal. There is little unnecessary padding, and the game gets straight to the business of challenging your skills.
A Visual and Audio Treat from SNK
One of the most appealing aspects of PREHISTORIC ISLE is its setting. The late 1980s were a golden era for arcade sprite work, and SNK’s presentation brings Greenhell Island vividly to life. The combination of lush jungle environments, volcanic scenery and enormous prehistoric creatures gives the game a distinctive, colourful identity. It is the sort of visual design that immediately communicates what the developers were trying to achieve.
The larger enemies are particularly effective, with their imposing size creating a sense of danger whenever a major encounter begins. The contrast between the small aircraft and the enormous creatures it faces makes the action suitably dramatic. Background details also help give the island a sense of place, rather than making every stage feel like a generic scrolling backdrop.
The audio complements the action nicely. The energetic arcade soundtrack provides an appropriate sense of urgency, while the sound effects of explosions and enemy attacks add weight to the constant on-screen activity. It is unmistakably a product of its era, but that is precisely what makes it enjoyable. There is a certain warmth to these old arcade soundtracks that modern productions sometimes struggle to replicate, and the presentation here feels right at home alongside the gameplay.
Hamster’s work in preserving the original visuals and audio is therefore important. The objective is not to modernise the game to the point of losing its identity, but to make the original experience accessible on contemporary hardware. PREHISTORIC ISLE benefits from being presented clearly and faithfully, allowing its original artwork and sound design to remain the focus.
Arcade Archives 2 Brings the Competition Back
As with other releases in the Arcade Archives 2 collection, the preservation features add considerable value beyond simply making the original game available again. Players can adjust difficulty and screen settings, use rewind, enable rapid fire, and make use of multiple save slots. These options are particularly useful for anyone who wants to practise difficult sections or experiment with different approaches without having to repeat large portions of the game.
The range of modes also gives players several ways to enjoy the experience. Original Mode provides the traditional arcade challenge, while Hi Score Mode is aimed squarely at those who want to establish themselves on the online rankings. Caravan Mode offers a five-minute score-chasing challenge, which is a particularly good fit for a game built around quick reactions and efficient play.
The addition of Time Attack Mode is another welcome inclusion. Instead of concentrating on the highest score, players compete to clear the game as quickly as possible. It changes the way you approach familiar stages, encouraging more confident decisions and a different understanding of the game’s pacing. Variable Refresh Rate support also helps reproduce the original arcade experience more closely on compatible displays.
These additions do not fundamentally change PREHISTORIC ISLE, nor should they. Their purpose is to make a classic arcade game more convenient to enjoy while providing extra reasons for experienced players to return. For those who enjoy comparing scores and testing their skills against a wider community, the online rankings and additional modes are particularly welcome.
Verdict
Arcade Archives 2 PREHISTORIC ISLE is a thoroughly enjoyable return to one of SNK’s more unusual arcade shooters. Its prehistoric setting provides plenty of visual spectacle, but it is the clever option unit mechanic that gives the gameplay lasting appeal. Being able to reposition your weapon and change your attack approach adds a welcome layer of strategy to the familiar side-scrolling formula, while the aggressive enemies and imposing bosses ensure the action rarely feels comfortable.
The difficulty may prove frustrating for newcomers, and the relatively straightforward structure means there is only so much variety beyond mastering the arcade challenge. Nevertheless, that is part of the game’s identity rather than a fundamental failing. Hamster Corporation has once again provided a faithful preservation of a classic, with modern features that make it easier to enjoy and more competitive than ever.
For fans of retro shooters, this is a particularly appealing release. It has personality, spectacle and a gameplay mechanic that still feels distinctive more than three decades after its original release. Taking a biplane into battle against an island full of dinosaurs might not be the most sensible military strategy, but it certainly makes for a cracking arcade adventure.
