Contra III - The Alien Wars

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A side-scrolling action scene displays a heavily armored blue-suited protagonist centered on screen, facing a large golden mechanical structure with a skull emblem on its central door. The industrial building spans the full width of the scene against a dark urban skyline with tall buildings silhouetted in the background. Red enemy soldiers stand on platforms to the left and right. The HUD shows 'LP 300' in the upper left and displays '1UP' with health indicators at the top. The color palette emphasizes gold and brown tones for the fortress structure against the dark night sky, rendered in 16-bit sprite graphics with visible scanline pixelation.

Contra III - The Alien Wars

魂斗罗:III - The Alien Wars

4.7 (999)
SNES Action 502 plays

Contra III: The Alien Wars is a run-and-gun action game developed by Konami and released in 1992 for the Super Nintendo. Players control heavily armed commandos battling extraterrestrial invaders across six stages. The game features vertical and horizontal scrolling levels with distinct environments, from jungle bases to alien spacecraft. Players use rifles, spread guns, and other weapons found during gameplay. The core mechanic involves movement, jumping, and precise shooting to defeat waves of enemies and massive bosses. Two players can cooperate throughout the campaign. The difficulty ramps significantly, with each stage introducing new enemy types and environmental hazards. Konami's challenge design emphasizes memorization and reflexes, requiring players to learn enemy patterns and adapt their strategy. The game became known for its punishing difficulty and demand for skill.

Developer
Released
Platform
SNES
Genre
Action
Players
2P
Rating
4.7 / 5 (999)
Last updated

About Contra III - The Alien Wars

Contra III: The Alien Wars arrived in North America in April 1992, landing during the SNES's second year on the market — a period when Nintendo's 16-bit powerhouse was still proving its technical superiority over the outgoing NES generation. Konami had already established the Contra franchise as a benchmark for run-and-gun action on the NES, with the original Contra (1988) and Super C (1990) building a devoted following. Contra III was designed from the ground up to showcase what the SNES hardware could do, and it delivered a dramatic leap in audiovisual fidelity and mechanical ambition over its predecessors.

The game casts players as either Bill Rizer or Lance Bean — or both simultaneously in its two-player cooperative mode — battling through six stages of relentless alien invasion across a dystopian Earth in the year 2636. The level structure alternates between two distinct play styles. Four stages are traditional side-scrolling gauntlets viewed from a horizontal perspective, demanding precise platforming and constant enemy management. The remaining two stages use a top-down overhead perspective that rotates dynamically using the SNES's Mode 7 scaling and rotation capability, giving the battlefield a sweeping, almost three-dimensional feel that was genuinely striking for its time. In these overhead stages, players must destroy a set number of enemy bases before a boss encounter, navigating a scrolling arena that twists and tilts beneath them.

Controls are tight and responsive. Players can fire in eight directions, jump, and perform a back-flip dodge. A key mechanical addition over earlier entries is the ability to carry two weapons simultaneously, swapping between them on the fly with a dedicated button. Weapons include the spread gun, homing missiles, a laser, and a flamethrower, among others. Players can also grab onto and swing from certain overhead pipes and ledges, adding a layer of verticality to combat. A limited stock of smart bombs — screen-clearing explosives — provides a critical panic option in the game's most chaotic moments.

Difficulty is a defining characteristic. Even on the Normal setting the game demands pattern recognition, quick reflexes, and resource management. Bosses are multi-phase encounters that punish aggression without precision, and the game's generous use of the SNES's sprite-scaling capabilities means enemies frequently loom large on screen, creating intense visual pressure. The cooperative two-player mode amplifies both the chaos and the fun, as partners can cover different angles and share the burden of boss fights, though a single life lost still removes that player from the field until a continue is used.

Upon release, Contra III was embraced as one of the finest action titles available on the SNES. Gaming press of the era highlighted its production values, the variety introduced by the Mode 7 stages, and its faithful escalation of everything that made the NES entries memorable. It cemented Konami's reputation for translating arcade-quality action to home hardware and remains a touchstone of the 16-bit era's run-and-gun genre.

What makes it special

Contra III makes technically ambitious use of the SNES's Mode 7 hardware feature in its two overhead-perspective stages, rotating and scaling the entire playfield in real time to simulate a three-dimensional battlefield. This was not a cosmetic flourish — the rotation directly affects player navigation and spatial awareness, making those stages feel mechanically distinct from anything the NES hardware could have produced. Combined with large, multi-phase bosses that use sprite scaling to grow and shrink dynamically on screen, the game served as a genuine showcase for the SNES's graphical capabilities at a time when that hardware was still establishing its identity.

Pro tips

  • Always carry the Spread Gun as one of your two active weapons — it covers wide angles and is effective against nearly every enemy type and boss in the game.
  • Use your smart bombs strategically on boss encounters rather than hoarding them; each boss has a dangerous attack phase where a bomb can negate massive damage.
  • In the Mode 7 overhead stages, prioritize destroying enemy bases quickly — lingering too long causes enemy spawn rates to increase and overwhelms you.
  • Learn to use the back-flip dodge (jump while pressing back) to avoid boss projectiles; it covers more horizontal distance than a standard jump and has brief invincibility frames.
  • In two-player co-op, assign one player to focus on airborne enemies and one on ground threats during chaotic sections — splitting target priority prevents both players from dying to the same attack.

Contra III - The Alien Wars Controls — SNES Keyboard Keys

Default keyboard bindings for Contra III - The Alien Wars on our in-browser SNES emulator. Plug in a USB or Bluetooth gamepad to auto-detect mappings, or rebind any key from the emulator settings menu.

Keyboard Console button Typical use
D-Pad Up Move up
D-Pad Down Move down
D-Pad Left Move left
D-Pad Right Move right
X A Primary action (jump / confirm)
Z B Secondary action (attack / cancel)
S X Tertiary action
A Y Quaternary action
Q L Left shoulder
W R Right shoulder
Enter Start Start / Pause
Shift Select Select / Mode

Rebind any key from the EmulatorJS in-game settings menu (gear icon → Controls). A connected gamepad auto-maps to the same buttons.

Contra III - The Alien Wars Longplay & Gameplay Videos

Watch a full playthrough of Contra III - The Alien Wars on SNES before you dive in — recommended for getting a feel for the game's pacing, story beats, and difficulty curve.

Watch longplay on YouTube

"Contra III - The Alien Wars" SNES longplay 1992

Contra III - The Alien Wars Cheat Codes

30 community-curated cheats for Contra III - The Alien Wars. Tick any to activate them automatically when you click "Play with cheats" — or copy a code into your own emulator.

  • Infinite Lives

    7E1F8A057E174602FF+7E1F8A02FF7E1FF8A0 +2
  • Infinite Bombs P1

    7E1F8C01
  • Infinite Health Rings

    7E1F8864
  • Infinite Lives P2

    7E1FCA10
  • Infinite Health Rings P2

    7E1FC8:647E1FC864
  • Infinite Bombs P2

    7E1FCC09
  • Infinite Continues

    7E1E6206C2CA-0F04
  • Weapon Modifier P1

    7E1F840?7E1F840C
  • Weapon Modifier P1 (2nd Weapon Slot)

    7E1F860?7E1F8600
  • Weapon Modifier P2

    7E1FC4:0?7E1FC400
  • Weapon Modifier P2 (2nd Weapon Slot)

    7E1FC6:0?7E1FC600
  • Action Modifier

    7E02120?7E021200
Show 18 more cheats
  • Infinite Bombs

    7E175C03FF+7E1F0C02FF7E1F8C017E175C03+7E1F0C02
  • Untouchable (Horizontal Stages)

    7E021603
  • Untouchable (Aerial-View Stages)

    7E0ED700
  • Infinite Bombs - Side-View Levels

    01802EDD
  • Infiinite Lives - Side View Only

    019B91DD
  • On The Side View Levels, A Picture of A Boss Appears (Shoot It For Lots of Points!)

    01BB8175
  • Less Side View Enemies

    01BB8185
  • No Repeating Enemies

    01BB8775
  • Infinite Bombs - Top-View Levels

    0291BEDD
  • Infinite Lives Top View

    029695DD
  • Infinite Lives Top View (Part 2)

    2969880
  • Infinite Lives For Side View Levels

    189091DD
  • Infinite Lives For The Top View Levels (Part 1)

    549092DD
  • When You Die You Don't Lose The Gun

    79BF9775
  • Infinite Lives - Top-View Levels

    029695DD+02969880
  • Start With 5 Bombs On Each Life - Side-View Levels

    00A2F105+019B9705
  • Start With 9 Bombs On Each Life - Side-View Levels

    00A2F109+019B9709
  • Start With 5 Bombs On Each Life - Top-View Levels

    00A6F105+028EED05
Play Now

External references

Frequently Asked Questions

When was Contra III - The Alien Wars released?

Contra III - The Alien Wars was released in 1992 for the SNES.

Who developed Contra III - The Alien Wars?

Contra III - The Alien Wars was developed by Konami, available to play in your browser on RetroGameSpace.

How many players does Contra III - The Alien Wars support?

Contra III - The Alien Wars supports up to 2 players, ideal for couch co-op or competitive sessions on the SNES.

What type of game is Contra III - The Alien Wars?

Contra III - The Alien Wars is a Action game for the SNES, playable instantly in your browser — no downloads, no installs.

How can I play Contra III - The Alien Wars for free?

Open this page and click "Play Now" — Contra III - The Alien Wars runs free in your browser via WebAssembly emulation. No account, no payment, no installer.

Do I need to download anything to play Contra III - The Alien Wars in the browser?

No. Contra III - The Alien Wars streams from a public archive into a browser-side SNES emulator. Nothing is installed on your computer.

Can I save my progress in Contra III - The Alien Wars?

Yes. Save states are stored in your browser (IndexedDB) per game, and you can also use any in-game save the original SNES cartridge supported.

Does Contra III - The Alien Wars work on mobile devices?

Yes — the SNES emulator runs on iOS Safari and Android Chrome. Touch controls overlay the game; landscape mode is recommended.

Is it legal to play Contra III - The Alien Wars this way?

RetroGameSpace is a transient caching reverse-proxy and does not host first-party copies of Contra III - The Alien Wars. Game files are fetched on demand from publicly-accessible archives. You are responsible for compliance with your local laws and the bring-your-own-ROM principle.

How long does it take to beat Contra III?

A single playthrough spans six stages and typically takes 35 to 50 minutes once you are familiar with the game. First-time players will spend considerably longer due to continues and learning boss patterns. There is no save system, so the game is designed to be completed in one sitting.

Is Contra III better with two players?

The two-player cooperative mode is the recommended way to experience the game. Partners can cover different threat vectors, revive the run more efficiently after deaths, and the shared chaos makes the intense difficulty more manageable and entertaining. The game is balanced for solo play but clearly designed with co-op in mind.

What is the most common mistake new players make?

New players frequently waste smart bombs early in stages on manageable enemy groups, then have none left for boss fights. Smart bombs are most valuable during boss second and third phases. Also, many beginners ignore the two-weapon swap system and stick to one gun, missing critical tactical flexibility.

Is Contra III worth playing today?

Yes. The controls remain precise, the stage variety holds up, and the cooperative mode is as engaging as ever. Players who find the default difficulty too punishing can access a practice mode on the title screen to rehearse individual stages, making the game more approachable than its reputation suggests.

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