Alien Syndrome

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Alien Syndrome (エイリアンシンドローム, Eirian Shindorōmu) is a 1987 run and gun video game developed and published by Sega for arcades. The game utilizes a side-scrolling feature that allows the player to take control of either a male (Ricky) or female (Mary) soldier whilst hunting aliens and saving hostages before they run out of time.

Alien Syndrome was released to commercial success and positive reviews, with praise towards its gameplay, character designs, sound design and horror themes. It was ported to various home computers and consoles, including Sega's own Master System, becoming one of the best-selling titles for that console. It was included as a bonus title in the 2009 compilation Sonic's Ultimate Genesis Collection.

From Wikipedia's article Alien Syndrome, licensed under CC BY-SA 4.0

Keyboard controls

NESPlayer 1Player 2
D-pad↑↓←→IKJL
BZN
AXM
SelectShiftB
StartEnterSpace

Hotkeys

  • 1 Quick save state
  • 2 Quick load state
  • 3 Change save slot

Gamepads are detected when you press a button. Remap any key from the emulator’s Controls menu (gear icon).

Online, both players use the Player 1 keys (or a gamepad) on their own computer. Saving, loading and pausing are off while you play online.

Emulator help & troubleshooting

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Keyboard controls

NESPlayer 1Player 2
D-pad↑↓←→IKJL
BZN
AXM
SelectShiftB
StartEnterSpace

Hotkeys

  • 1 Quick save state
  • 2 Quick load state
  • 3 Change save slot

Gamepads are detected when you press a button. Remap any key from the emulator’s Controls menu (gear icon).

Online, both players use the Player 1 keys (or a gamepad) on their own computer. Saving, loading and pausing are off while you play online.

Emulator help & troubleshooting

No reviews yet

We found no critic scores for this game, and too few players have rated it.

Review scorecard

  1. Graphics — Not scored Unavailable
  2. Sound — Not scored Unavailable
  3. Control — Not scored Unavailable
  4. Fun Factor — Not scored Unavailable

No category score or overall rating is available for the unscored slots.

Full reviews

GamePro face key

  1. 1.0Wake me up when it's over0+ out of 100
  2. 1.5Wake me up when it's over+ thumbs-up40+ out of 100
  3. 2.0Could be better50+ out of 100
  4. 2.5Could be better+ thumbs-up60+ out of 100
  5. 3.0Good job68+ out of 100
  6. 3.5Good job+ thumbs-up75+ out of 100
  7. 4.0Great job!80+ out of 100
  8. 4.5Great job!+ thumbs-up85+ out of 100
  9. 5.0Outstanding!90+ out of 100

GamePro named the five whole-number faces; a thumbs-up adds half a point to the same caption. GamePro’s original rating-face design, adapted from Ryan Quintal’s 2018 vector recreation; cleanup for YouConsoles.

Play online

Play with a friend on another computer. Host a room and send them the link, or list it in Open rooms for anyone to join; they play as Player 2 and you both see the same game.

Press Start Game first.

Go live

Let anyone watch you play, live in their browser. They see your game as you play it, and your online game when you host a room.

Press Start Game first.

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