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Difference between revisions of "Sonic the Hedgehog (16-bit)/Bugs"

From Sonic Retro

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(Adding music-related bug in Sonic The Hedgehog 1 (16-bit))
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===Missing Percussion after Extra Life Music===
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After collecting an extra life, if you pause the game as the main zone music starts to fade in, when you resume the game, the music resumes fading in but without percussion. Percussion is restored for the next music track that is played. (Completing level, getting invincibility monitor, getting extra life, etc.)
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'''Not fixed''' in any version
  
 
==Level bugs==
 
==Level bugs==

Revision as of 13:34, 16 May 2010

General bugs

Missing Press Start on Title Screen

The text "Press Start Button" was meant to be displayed on the title screen. Due to RAM not being properly cleared after the two previous screens it does not appear. The byte that should call for it to appear is shared with the previous screens and since the RAM in this area is not reset the value is stuck in a no call state. For a more technical explanation check the Sonic Retro forums
Sonic Retro
here
.

Not fixed in any version

Hidden Points Bug

At the end of the level when jumping to collect the hidden points the game only rewards 10 points for the 100 point flags. A explanation how to fix the bug on your own is available here.

Not fixed in any version

Missing Percussion after Extra Life Music

After collecting an extra life, if you pause the game as the main zone music starts to fade in, when you resume the game, the music resumes fading in but without percussion. Percussion is restored for the next music track that is played. (Completing level, getting invincibility monitor, getting extra life, etc.)

Not fixed in any version

Level bugs

See the External Links below for a video about these bugs

Zip through walls in Scrap Brain Zone

On the first act find the ledges that move right then left. Go to the far right side of the wall and wait for the platform to move to the right. As soon as it starts to move right, duck. You'll go through the wall. While here, press Left to zip right and Right to zip to the left.

Fixed in Sonic the Hedgehog Genesis

Speed Tunnel Scrolling in Green Hill Zone

On the first act there is a series of two speed tunnels with a star post in the middle. Occasionally, if Sonic is moving too fast the screen won't scroll down fast enough and when Sonic touches the bottom of the screen he will die, as if it were a pit.

Fixed in Sonic the Hedgehog Genesis

Crash game in Labyrinth Zone

At the end of the first two acts, Sonic can fall off the level by rolling after passing the signpost, which may result in an Illegal Instruction exception.

??? in ???

Fall off level in Final Zone

It is possible to fall off the edge of the level after defeating Eggman. This is only possible if Eggman is hit one final time when trying to escape. If not, Sonic's forward movement will be stopped when jumping near the edge.

Fixed in Sonic the Hedgehog Genesis

Final Zone Boss bug

In Final Zone, getting the final hit on Robotnik early in the round will allow a player to hit him again while the piston slowly retracts. This action loops his hit counter from 0 to 255, and interrupts the defeat sequence, making Robotnik restart his attack pattern. The only thing that can be done at this point is to fight on until Time Over or allow yourself to be killed and restart the stage.

Fixed in Sonic the Hedgehog Genesis

Going too high in Star Light Zone

On the first act there is a place with an Orbinaut. Jumping there is OK, but if you're pushed higher, by getting hit, you'll die.

Fixed in Sonic the Hedgehog Genesis

Player bugs

Jumping next to solid objects

In certain circumstances, but most often when next to a solid object, jumping will use the wrong animation, so that Sonic appears to "walk" in mid-air. This happens often in Marble Zone while on the blocks that float on the lava. This also happens in Green Hill Zone Act Two, at the second block (the one with the yellow spring on top).

Not fixed in any version

External Links


Sonic the Hedgehog (16-bit)
Sonic1 title.png

Main page (Gen|2013|3D|Ages)
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Hidden content (Gen) (2013)
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