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Sonic the Hedgehog (16-bit)

From Sonic Retro

Revision as of 19:52, 17 October 2004 by Ss is testing (talk | contribs) (Scoring)

Introduction

The first Sonic game, it starred just Sonic and Dr. Eggman. It was a simple sidescroller, where Sonic could curl up into a ball, whereupon if he hit an enemy, it would usually be destroyed. Sonic's jump was also a vital part of the game, as it was his main attack.

Each Zone featured three "acts" or levels each following the same theme as the last.

Levels

Release Dates

  • EU: 23rd June 1991
  • US: 23rd June 1991
  • JP: 26th July 1991


Scoring

Hitting bumpers: 10 points for each of the first ten hits on any given bumper; after that no more points can be gained from that bumper

Hitting enemies: (a chain refers to all enemies destroyes until the next time Sonic lands on some form of ground)

-First enemy in a chain = 100

-Second enemy in a chain = 200

-Third enemy in a chain = 500

-Fourth through 15th enemies in a chain = 1000 each

-16th and all subsequent enemies in a chain = 10000 each

Destroying a Dr. Eggman boss robot: 1000 points

Ring bonus at end of level: 100 points for each ring held

Time bonus at end of level:

-Game clock reads 0:29 or less = 50000

-Game clock reads 0:30 to 0:44 = 10000

-Game clock reads 0:45 to 0:59 = 5000

-Game clock reads 1:00 to 1:29 = 4000

-Game clock reads 1:30 to 1:59 = 3000

-Game clock reads 2:00 to 2:59 = 2000

-Game clock reads 3:00 to 3:59 = 1000

-Game clock reads 4:00 to 4:59 = 500

-Game clock reads 5:00 or more = 0

End-of-level flags: On the screen where the goal post stands, there are sometimes flags you can trigger. These flags are hidden, but if you hit them they will appear and show either 100, 1000, or 10000. The flags that say "100" are really only worth 10 points each, but the 1000 and 10000 flags report their values accurately.

Special stage: 100 points for each ring held


Note: in cheat codes, a + signifies that the buttons should be pressed simultaneously.

Cheat Codes, EUJ Version

From title screen

  • Zone Select: U D L R A+Start, select zone
  • In-level Functions: U C D C L C R A+Start, hold A until Sonic appears
  • Zone Select + In-level Functions: U D L R U U C D C L C R C A+Start, select zone, hold A until Sonic appears (the extra U is to force the cheat detection code to reset itself)

On all codes containing C's, the C's can be input anywhere during the sequence.

Cheat Codes, J Version

From title screen

  • Zone Select: U D D D L R A+Start, select zone
  • In-level Functions: U C D D D C L C R A+Start, select zone, hold A until Sonic appears
  • Zone Select + In-level Functions: U D D D L R U U C D C L C R A+Start, select zone, hold A until Sonic appears (the extra U is to force the cheat detection code to reset itself)
  • Hidden Japanese Credits Screen: C C U C D D D C L C R C, hold Down+A+B+C while demo starts

On all codes containing C's, the C's can be input anywhere during the sequence.

In-level Functions, all versions:

Debug

Press B to toggle normal and debug mode.

Press A to advance forward through the debug object list.

Press A+C to advance backwards through the debug object list.

Press C to place the selected object at the current coordinates.

Current coordinates are designated by the top line of hex digits in the HUD.

Viewport coordinates are designated by the bottom line of hex digits in the HUD.

Slow-motion/Restart - during pause

Press A to fade to black and restart from the "SONIC TEAM PRESENTS" screen.

Press and hold B to enable slow-motion (this proceeds at half-speed, or 15fps, for as long as you hold the B button).

Press C to advance one frame.

Game Genie Codes

AE3T-AACL - You start with 1 life. AY3T-AACL - You start with 5 lives. AE0T-CABE - Once you gain Invincibility, you stay invincible until the stage ends, or when you die. SCRA-BJX0 - Each ring is worth 2. SCRA-BNX0 - Each ring is worth 3. SCRA-BTX0 - Each ring is worth 4. SCRA-BYX0 - Each ring is worth 5. SCRA-B2X0 - Each ring is worth 6. SCRA-B6X0 - Each ring is worth 7. SCRA-BAX0 - Each ring is worth 8. GJ6A-CA7A - Infinite lives. AJ3A-AA4G - Access to the Level Select menu. AY3T-BA4R - Start with 5 Chaos Emeralds in possession. DDLT-AAGL - Jump higher than your regular jump. KDLT-AAGL - Jump lower than your regular jump. BDLT-AAGL - Jump VERY high and "float" in the air. AEOT-CABY - Once you gain Speed Shoes, you keep them until the stage ends, or when you die.


Boxart

http://web.archive.org/web/20031225101824/boxscans.sonic-cult.org/sonic1-box-us.jpg


Sonic the Hedgehog games for the following systems
Sega Mega Drive

Sega Mega-CD
Sega 32X
 1991  Sonic the Hedgehog | Sonic Eraser     1992  Sonic the Hedgehog 2     1993  Sonic the Hedgehog CD | Dr. Robotnik's Mean Bean Machine | Sonic Spinball     1994  Sonic the Hedgehog 3 | Sonic & Knuckles     1995  Chaotix | Sonic Classics     1996  Sonic 3D: Flickies' Island