Difference between revisions of "Sonic Mega Collection/Bugs"

Latest revision as of 13:57, 25 January 2024

Back to: Sonic Mega Collection.

The bugs in this list apply specifically to the emulator used in Sonic Mega Collection. Bugs that exist in the original releases of each game can be found in their respective bug pages.

Game-specific bugs

Sonic the Hedgehog 2

DAC sample corruption

In Sonic 2's sound test, play sounds 7E, 7E, 00, 01, 02, 03, 04, then press and select "Game Title" to soft reset. This will cause the snare drum samples in the music to be amplified to the point of crackling. It should be noted that some of the tracks on the sound test (especially those in the last ten slots) have the potential to freeze or crash the game when selected.

Not fixed in any version.

Flicky

PAL optimisation error

Sonic Mega Collection (PAL)

Mega Drive (PAL)

The PAL version of Sonic Mega Collection configures all games to use their PAL versions when running in 50Hz mode, making an effort to remove overscan borders and having the screen fill the whole display. However, this does not account for games that use a vertical resolution of 240 on PAL systems. While most games in the collection do not use the extended vertical resolution on PAL systems, Flicky does by moving the lives and round counters into the extra space. Thus, due to how display scaling is handled in Sonic Mega Collection, these counters are cut off the screen.

While Ristar is also affected by this issue, no crucial information is cut off from the bottom of the screen.

Not fixed in any version.

References

Sonic Mega Collection

Main page

Manuals
Promotional material
Magazine articles
Reception

Development
Hidden content
Bugs

show;hide

Games
Prereleases
Media

Main Games

Sonic the Hedgehog

Sonic the Hedgehog 2

Sonic the Hedgehog 3

Sonic & Knuckles

Sonic 3D

Sonic Spinball

DRMBM

Unlockable Games

Blue Sphere

Knuckles in Sonic 2

Sonic 3 & Knuckles

Flicky | Ristar

Japan Exclusive: The Ooze | Comix Zone

2002-08-15
prototype

Books:

File:SonicMegaCollectionSaikyouKouryakuGuide Book JP.pdf

Saikyou Kouryaku Guide

@@ Line 1: / Line 1: @@
-==General bugs==
+{{back}}[[Category:Bugs]]
-===Sonic 2 Mega Collection code===
+The bugs in this list apply specifically to the emulator used in ''[[Sonic Mega Collection]]''. Bugs that exist in the original releases of each game can be found in their respective bug pages.
-In ''Sonic 2'' sound test play 7E,7E,0,1,2,3,4.  Then hit z and go to the title screen via the option screen.  You should hear a weird version of [[Emerald Hill Zone|Emerald Hill]] playing.  The snare drum sample will be amplified to the point of crackling. It should be noted that some of the tracks on the sound test (especially those in the last ten slots) have the potential to freeze or crash the game when selected.
+==Game-specific bugs==
+===''[[Sonic the Hedgehog 2]]''===
+====DAC sample corruption====
+{{Bug
+| image=no
+| desc=In ''Sonic 2''<nowiki>'</nowiki>s sound test, play sounds {{hex|7E, 7E, 00, 01, 02, 03, 04}}, then press {{Z}} and select "Game Title" to soft reset. This will cause the snare drum samples in the music to be amplified to the point of crackling. It should be noted that some of the tracks on the sound test (especially those in the last ten slots) have the potential to freeze or crash the game when selected.
+}}
-'''Not fixed''' in any version
+===''[[sega:Flicky|Flicky]]''===
+====PAL optimisation error====
+{{Bug
+| image=SonicMegaCollection GC EU Bug Flicky PALOptimisations.png
+| image2=Flicky MD EU Round1Start.png
+| caption=''Sonic Mega Collection'' (PAL)
+| caption2=Mega Drive (PAL)
+| desc=The PAL version of ''Sonic Mega Collection'' configures all games to use their PAL versions when running in 50Hz mode, making an effort to remove overscan borders and having the screen fill the whole display. However, this does not account for games that use a vertical resolution of 240 on PAL systems. While most games in the collection do not use the extended vertical resolution on PAL systems, ''Flicky'' does by moving the lives and round counters into the extra space. Thus, due to how display scaling is handled in ''Sonic Mega Collection'', these counters are cut off the screen.
-===Sonic 3 glitch===
+While ''[[sega:Ristar|Ristar]]'' is also affected by this issue, no crucial information is cut off from the bottom of the screen.
-Go to the ''Sonic 3'' level select menu and enter any act one except for [[Angel Island Zone (S3)|Angel Island]] or [[Icecap Zone (S3)|Icecap]].  Now hit z and go to title screen via the menu.  Go back to the level select screen (you don't have to reenter the code, but you should enter debug mode) and go to special stage act 2 (the one that does not loop).  Lose (it is quicker) and hold b until the level starts.  Now play through act 1 of the level.  When you reach act 2 it will be messed up.  Use debug mode to explore the act.
+}}
-'''Not fixed''' in any version
+==See also==
+*[[Sonic the Hedgehog (16-bit)/Bugs]]
+*[[Sonic the Hedgehog 2 (16-bit)/Bugs]]
+*[[Sonic the Hedgehog 3/Bugs]]
+*[[Sonic & Knuckles/Bugs]]
+*[[Knuckles the Echidna in Sonic the Hedgehog 2/Bugs]]
+*[[Sonic the Hedgehog 3 & Knuckles/Bugs]]
+*[[Sonic 3D: Flickies' Island/Bugs]]
+*[[Sonic the Hedgehog Spinball/Bugs]]
+*[[Dr. Robotnik's Mean Bean Machine/Bugs]]
+*[[sega:Ristar/Bugs|Ristar/Bugs]]
+*[[sega:Comix Zone/Bugs|Comix Zone/Bugs]]
-{{SonicMegaCollectionLevels}}
+==References==
+<references/>
-[[Category:Bug Lists]]
+{{SonicMegaCollectionOmni}}