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The key and key door in-game
In-Game Information
Category: Level Objects
Description: Collect these to unlock key doors. You can carry up to seven. (

Collect these to unlock key doors. Has four color options for different doors. (

Misc. Information
Programmer(s): WreckingPrograms (ported and modified from Make a Good Mega Man Level 2)
Meka (color options)
Sound effect creator(s): CosmicGem (when collected)
Series Information
Game of origin: Make a Good Mega Man Level 2

Keys are level objects introduced in Mega Man Maker version 1.2.0, inspired by the keys in Super Mario Maker and Make a Good Mega Man Level 2. These digital door-openers can open any Key Door from any side. Upon opening a door, a key is consumed.

Keys cannot be placed in enemies, and are unaffected by gravity, floating wherever they are placed. Checkpoints will save keys if they are not used up already. Since 1.7.0, the keys come in four different colors aside from the blue ones: green, pink, and orange, with up to 99 of each color being able to be carried for a total of 396 keys. The key count for each color is displayed in the top right corner of the screen. Collecting more keys after already collecting 99 of a color will make the newly collected keys disappear without changing the key collection count. The Key Doors were similarly modified and can only be open to the respective color with the sufficient amount of keys.

In the teaser revealing keys for version 1.2.0, the Key, along with the Key Door, used the same design as the ones from Make a Good Mega Man Level 2, whose Key graphic was in turn ripped from Super Mario Maker. However, it was changed prior to the version's release due to its current design not fitting the Mega Man universe.

Since 1.5.0, bosses set to give a key instead on being a goal after defeat will give the player a key. Unlike pickups dropped from bosses, keys obtained this way travel directly to the player's current position instead of being placed on the place the boss was defeated. With the color options introduced in 1.7.0, the color of the key the boss drops can be modified in the boss settings.

Prior to version 1.7.0, the player could store no more than seven of the default variant keys at once. Each key would be displayed as an icon right of the player's health bar

They can be collected from afar with Magic Card. However, projectiles fired with Hornet Chaser will fly towards them but bypass them instead of collecting them.


  • SnoruntPyro gave WreckingPrograms permission to implement the Key and the Key Door from Make a Good Mega Man Level 2.[1]
  • The Key, along with the Key Door, were the final items announced for 1.2 before the release date was revealed.
  • At the end of the GIF revealing colored Keys and Key Doors, Mega Man falls into a narrow pit and collects 17 blue Keys, 12 green Keys, 19 pink Keys, and 87 orange Keys. This number corresponds to the release date of Mega Man in Japan, 17/12/1987, or December 17, 1987.
  • Despite color options being added in 1.7.0, the descriptions for the key door and the key were updated later in version 1.7.1 to reflect the new color options.