Exolon: The Run-and-Gun With the Slow Walk

Raffaele Cecco built his reputation on Hewson Consultants’ stable of home-computer originals in the run-and-gun mould, and 1987’s Exolon is the clearest statement of his design instincts. A soldier named Vitorc is dropped onto a hostile alien world, armed with a standard gun that never runs dry and a strictly rationed store of grenades for anything the gun cannot touch. Exolon shipped for Spectrum, C64 and Amstrad CPC in 1987, with later ports to Enterprise 128, Amiga and Atari ST extending its life into the following decade. What makes it worth revisiting alongside the console run-and-guns it gets compared to, Contra chief among them, is what it refuses to be. Vitorc does not sprint. He advances at a level, unhurried pace across each flip-screen, and the entire design downstream of that pace is what separates Exolon from its faster cousins.

Two weapons, two philosophies

The gun is unlimited and activated with a tap of the fire button: point, shoot, move on. The grenades are the opposite in every respect, a finite resource triggered by holding fire rather than tapping it, which has the practical side effect of disabling any autofire peripheral a player might have rigged up to make the standard gun easier to spam. That is a deliberate piece of friction. Cecco wanted the grenade decision to be a decision every time, not a reflex, because grenades are the only thing capable of clearing the rock formations and gun emplacements that block a path outright. Waste them on aliens the gun could have handled, and there is nothing left when a level genuinely needs one.

This two-tier arsenal turns the flip-screen structure, each screen its own sealed puzzle in the tradition Exolon shares with Impossible Mission: The Voice, the Somersault, the Puzzle, into a resource-management exercise dressed as an action game. A screen with three aliens and one blocked doorway is not “shoot everything.” It is “work out which one thing actually needs the scarce resource, and gun down the rest with the weapon that costs nothing.” Most of the alien types on any given screen can, in fact, simply be avoided rather than shot at all, which reframes the gun itself as optional in a lot of encounters, and the grenades as the only truly load-bearing resource in the game.

The case for the slow walk

Contra-style run-and-guns, most of them arcade-descended, build tension from speed: bullets fill the screen, and the job is to be fast enough and precise enough to be somewhere else when they arrive. Exolon’s pace does the opposite. Because Vitorc covers ground steadily rather than dashing, there is time to actually read a screen before committing to it: to see the landmine before stepping on it, to notice a homing missile’s launch point before it locks on, to plan the duck-jump-duck sequence a cluster of aliens requires rather than reacting to it half a second late.

That pace is not a limitation the C64 or Spectrum forced on Cecco. Contemporaries proved a faster-feeling avatar was entirely possible on the same hardware. It is a design choice, and it is the choice that makes Exolon read as a puzzle-run-gun rather than a reflex test. The slow walk buys thinking time, and the game spends that time relentlessly, stacking landmines, gun turrets and homing missiles into the same screen so that reading correctly, not moving fast, is the skill actually being examined. A player who tries to treat Exolon like a twitch shooter, firing and advancing without pausing to read the layout, will burn through lives at a rate the level design never intended.

The rock as the real final boss

The hazards scattered between rock formations are worth naming, because they are what makes the slow walk risky rather than merely deliberate. Landmines sit flush with the ground and are near-invisible until a player has already learned a screen’s layout by dying on it once; homing missiles launch from fixed emplacements and track Vitorc’s position rather than firing along a straight line, which punishes standing still to line up a shot; gun turrets simply hold a lane and have to be either destroyed or ducked past entirely. None of these threats individually asks much of a player’s reflexes. Together, spaced across a single screen, they ask for a route, planned in advance, which is precisely the kind of test a measured walking pace is built to support and a sprinting one would make nearly impossible to execute cleanly.

The recurring obstacle across Exolon’s levels is the terrain. Rock formations physically block the route forward and can only be removed with a grenade, which means every level eventually forces the resource question the game has been asking since screen one: has the player been frugal enough with limited explosives to still have one when the level, rather than an enemy, demands it? A player who has been lobbing grenades at aliens the gun could have handled will hit one of these blockages with nothing left and no way through. It is an elegant piece of pacing, because the boss is the player’s own earlier decisions, made concrete as a wall of stone rather than a sprite with a health bar.

That framing also explains why Exolon rewards a second and third playthrough more than most action games from the period. Once a player knows roughly where the blockages fall, the correct grenade budget for a level becomes calculable in advance, and the game shifts from “survive this” to “spend correctly,” which is a much rarer kind of mastery curve for a game in this genre bracket to offer.

Where it sits in Cecco’s run

Exolon also set a template Cecco kept returning to. Critics have since described his 1989 shoot-em-up Stormlord as a spiritual successor to Exolon, sharing its instinct for pacing a level around a scarce resource rather than a life bar, even though the two games sit in different genres on paper. That continuity of design thinking across genre boundaries is the real signature of a Hewson-era programmer working without a large studio behind him: Cecco was not iterating on a franchise so much as iterating on a single idea about what makes 8-bit action satisfying, and testing it against a new set of verbs each time.

Exolon is the first clean statement of a design sensibility Cecco would refine further the following year in Cybernoid: The Shooter as a Corridor of Traps, where the same instinct for reading over reflex gets applied to a scrolling shoot-em-up instead of a ground-based run-and-gun. Reading the two together is the clearest way to see what Cecco actually contributed to Hewson’s catalogue beyond individual games: a consistent argument that 8-bit action design could reward patience as readily as speed, in genres where the arcade norm rewarded neither.

It is also worth setting against Commando: The Run-and-Gun Boiled Down to Nerve, an arcade conversion built entirely around nerve and speed, to see how differently two games in the same rough genre bucket can treat the core verb of shoot-and-move. Commando’s soldier is disposable and fast; Vitorc is deliberate and precious, in the sense that losing him costs a level’s worth of careful grenade accounting rather than a few seconds of positioning. Neither approach is the correct one in the abstract. They simply ask a player to bring a different set of instincts to the controller.

Exolon rewards the kind of player who treats a first playthrough as reconnaissance rather than a serious attempt, since so much of the challenge is knowing what a screen contains before walking into it. That is unusual honesty for a game of this vintage to build into its structure: most contemporaries dressed up trial-and-error memorisation as raw difficulty, while Exolon’s slow, readable pace makes the memorisation feel like the intended skill rather than a workaround for cheap hazard placement. Revisiting it now, after decades of faster, more forgiving action games, that patience is the thing that dates least.

Where to play it now

Exolon’s three original 1987 ports are not identical experiences. The Spectrum version, the platform Cecco is most associated with, has the tightest collision detection and the crispest flip-screen transitions; the C64 conversion trades a little of that precision for SID-chip music that gives the alien world more atmosphere than the Spectrum’s beeper ever could. The Amstrad CPC version sits between the two, closer to the Spectrum in layout but with the C64’s advantage of a proper sound chip. None of the differences change the resource logic at the heart of the game, which is the part worth returning to regardless of which machine a player has to hand.

Exolon runs well in VICE for the C64 version, or any mainstream Spectrum emulator for the ZX original. The later Amiga and Atari ST ports add colour and a slightly larger sprite but keep the flip-screen structure and the two-weapon system completely intact, so the choice of platform is really about which machine’s control feel a player prefers rather than which version is more complete. The Amstrad CPC version, closer in spirit to the Spectrum original, is a reasonable middle ground for anyone who wants the game’s original screen layout without ZX Spectrum colour clash.

Spoilers below

The rock-formation gating gets more aggressive in the game’s second half, where levels routinely place two or three blockages in sequence rather than the single obstacle typical of the opening stages. A player who has been careless with grenades against soft targets, the aliens the gun handles fine on its own, will find themselves stranded mid-level with the correct path visible and no way to clear it, forced to restart rather than backtrack, since Exolon’s flip-screen format offers no route to retrieve unused resource from an earlier section. The intended read, reinforced by the late levels rather than stated anywhere in the manual, is that the grenade count is a budget for the whole run, not a per-screen allowance. It is the same lesson the terrain has been teaching since the first blocked doorway, just enforced with markedly less patience the further a player gets.