|The icon of Nothing in Mega Man Maker.|
The Nothing weapon is what takes up unused spaces in the weapon select screen. It can only be selected from the pause menu if the primary weapon is locked or not set, and even then, it still does not do anything different. It also takes the place of a locked weapon put inside a Weapon Capsule when playing the level until the weapon is picked up.
Alternatively, it can be put to items designed around weapons, like Weapon Blocks, Weapon Capsules and Weapon Remover. For Weapon Blocks, it will render them utterly indestructible. Weapon Capsules set to it will fill the energy of the weapon currently equipped when the player character touches it. Weapon Removers set to it will block all the weapons when the player touches it.
It is possible to deal damage to enemies and bosses when "Nothing" is equipped while playing as Proto Man, since he can jump and use his Proto Shield to deflect enemy and boss projectiles back at them.