This page lists tricks and information for Daffy Duck: The Marvin Missions (GB).

General information


For the 5 digit number password, just add all the numbers together and check the table. As a result of this password algorithm, there are several possible passwords leading to the same levels.
All 5 numbers added Stage

Ingame cheat codes

Below the health meter is your points counter. Every time you kill an enemy, you gain 1 point. When you pause and press a key twice, the game converts 10 points into something useful.
Button combination pressedEffectNotes
Up+UpLaser weapon
Right+RightAutofiring weapon
Down+DownHuge bullet weapon The bullets fired by this weapon will pass through breakable blocks and can kill anything in one hit, even immune enemies/objects
Left+LeftBouncing bullet weapon
A+A Refills jetpack fuelWorks in Super Stages only
B+B Sets health to 5
In boss rooms, only the A+A and B+B codes will work.

Version differences

There are multiple versions of the game and a mixture of revisional and regional differences between them. At the moment, there are three known versions, although there could be more. The differences are related to:
Version 1
Super Gameboy
Version 2
Version 3
Super Gameboy
Fewer enemies in first Stage
Health glitch w/o effects
All enemies in first Stage
Health glitch w/ effects
All enemies in first Stage
Health glitch w/o effects
There has been an attempt at distinguishing between the versions using their catridge codes. See here.
>TODO: Investigate.

Super Stages

The game has a hidden extra mode that can be accessed by stepping on the cart at the beginning of Stage 1, then repeatedly jumping through the room while building up horizontal speed. If done correctly, instead of loading the next room, the game shows a black screen with the text "Super Stage".
You are given 100 points and the Stages are extremely difficult to play through, from a casual standpoint, requiring you to navigate through long bottomless sections whilst relying on the "refill jetpack fuel" code.


Down Button glitch


Immunity glitch

While using the jetpack, you are immune to damage by touching enemies.

Out of Bounds glitch


Health glitch

This glitch will increase your health. To do it, hold Left until you move at full walking speed and then press Right+B. There are two possible variations of this glitch:

Memory Corruption glitch

Do the Health glitch on the plain GB version and reduce your health down to 63. Depending on the system/emulator, there are different outcomes.
This is assuming you use the DMG-YS-NOE-1 or DMG-YS-NOE game (USA & European GB version).
SGB1Game freezes
GBAGame turns black and freezes
Gameboy Player (PAL)Game turns black and freezes
BGB 1.5.1Game slows down and flickers. Occasional crashes.
VBA v19~23Game slows down and flickers. Occasional crashes.
VBA v24mGame slows down and flickers. Occasional crashes.
Bizhawk 1.11.7 Gambatte-coreGame slows down and flickers. A lot of variety in the glitch. Random jumps to different parts of the game. Very high frequency of crashes.
As a result of this comparison, it is believed that the glitch effects are likely the result of inaccurate emulation. However, there is the possibility that there are multiple game versions yet untested on the real consoles.
The video below demonstrates the glitch as it happens in Bizhawk 1.11.7 Gambatte-core:

Stage 3 Boss glitch

At the boss in Stage 3, jump on one of his shots in a certain way to insta-kill him.
See at 4:40 in the video:

Skipping plate rooms


Boss Sprite removal glitch


GameResources/GB/DaffyDuckTheMarvinMissions last edited by adelikat on 8/29/2023 7:55 PM
Page History Latest diff List referrers View Source