Sonic & Knuckles/Bugs
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This page documents bugs/glitches that have been found in Sonic & Knuckles. Most of these bugs also apply to Sonic the Hedgehog 3 & Knuckles as the code base is the same.
Contents
General bugs
Incorrect monitor palettes
Monitors are designed to use the blues from Sonic's palette line, so if the player is controlling Knuckles, problems arise. While this issue dates back to using Super Sonic in Sonic the Hedgehog 2 (and is an issue for Super Sonic in Sonic 3 as well as this game), Knuckles is a main character available from the start, and bubble shield monitors are meant to symbolise water.
Curiously a conscious effort to fix shield palettes was made in Knuckles the Echidna in Sonic the Hedgehog 2 (the code for which exists in the ROM of Sonic & Knuckles), but not the main game.
Not fixed in any version.
Level bugs
Mushroom Hill Zone
Act 2 boss sometimes shows as Eggman rather than Eggrobo
Sometimes, Knuckles' boss will have the face of Dr. Eggman rather than Eggrobo as it should. This usually happens after the player loses a life, because it's caused by the game's not having sufficient time during reloading to patch-in Eggrobo's face over Eggman's.
Not fixed in any version.
Flying Battery Zone
Knuckles fights Eggman instead of Eggrobo
While playing as Knuckles in Flying Battery Zone's second Act, the Hang Mobile is piloted by Dr. Eggman instead of Eggrobo. Unlike the above bug, this occurs every time.
This is likely to be due to the game's artists missing this sprite. The battle's perspective is different – the Eggpod and therefore its pilot face the screen head on – and thus requires new animations, which the artists did not implement for Eggrobo.
Not fixed in any version.
Lava Reef Zone
Exploding Iwamodoki shows 100 points but does not award them
The badnik Iwamodoki releases a small animal and displays a "100" points score when it explodes, but it does not award points to the player. Perhaps the lack of points – but, of course not the presence of the score notification – is intentional because the player cannot be directly responsible for destroying the badnik, which instead self-destructs when a character approaches. This might indicate that Iwamodoki was supposed to behave like Asteron, which upon self-destructing neither awards points, displays a notification, nor releases an animal.
Not fixed in any version.
Bonus Stage
Red Sonic
When Knuckles leaves the slot machine bonus stage, he briefly becomes a red version of Sonic as the screen fades out.
Not fixed in any version.
References
Sonic & Knuckles | |
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Main page (S3&K|KiS2|Blue Sphere) Manuals Development |
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