Stickers (シール, Seal) are collectible items in Super Smash Bros. Brawl, similar to trophies; which can be used in the Subspace Emissary to boost certain aspects or stats of a character. Additionally. can be added to a background and made into a collage inside the "Sticker Album" menu.
There are 700 stickers. Collecting all of them will unlock the Stickers Trophy.
Compared to trophies, stickers are far more common; as there are 700 stickers total, and only a handful of trophies that can be found randomly. They can be earned via the following methods:
Strangely enough, the maximum number stickers the player can collect per battle is 255. Exceeding this limit will get rid of the stickers the player had collected at the time, due to a wrapping issue. This is because the game reads the last 8 digits of the sticker count when written in binary; 255 is read as 11111111. If the number goes any higher, it will be set at 100000000 - and the disc will only read the last 8 digits.
On Friday, Jan 18th 2008, Smash Bros. DOJO!! announced that stickers can be used as power-ups. To do so, the stickers must be placed on the undersides of character trophies. Different stickers give different boosts, as well as some that are character-specific (most of them can be used by any character). Larger stickers give higher boosts, but take up more space on the trophy base. The statistical boost is only for the Subspace Emissary and does not apply to any other modes. Applied stickers can be moved around, but removing one discards it permanently (though they can be regained through playing).
Stickers with the same effects do not stack; e.g. if an Arm +13 and an Arm +20 are placed on the base of a trophy, that character will only receive the larger +20 boost to arm attacks, not +33, although an Arm/Leg sticker will stack with individual Arm and Leg stickers - i.e., an Arm/Leg + 10, an Arm +10 and a Leg+10 sticker will all combine to boost Arm and Leg attacks by 20. It is also possible for a single attack to fall under several categories, like Captain Falcon's Falcon Punch, which deals Arm, Specials: Direct, and Fire damage.
To get to the stickers page, go to the Subspace Emissary menu and click the 1 or B button. To the left of "save", there is a stickers option. Losing during the Subspace Emissary causes half of the stickers found on that level to be lost.
Each sticker has a single effect which may be any of the following. The number listed with the effect indicates how much the aspect is improved.
The largest category of stickers simply increases the damage dealt by the user's attacks. The exact meaning of the number given is unknown, but presumed to be similar to the resistance stickers (see below).
When used, these stickers reduce the damage taken by incoming attacks.
The meaning of the number is currently not well understood; it is not a simple addition or percentage decrease. Instead, it is currently believed to be something akin to this:
...where v is the value given by the sticker description and r is the damage multiplier. For example, a sticker with a reduction of 27 will cause attacks to be scaled to 0.675 of the original damage, or a damage reduction of 32.5%.
These stickers have varied and unusual effects.
In The Subspace Emissary, you can place stickers on trophy stands to augment the offensive and defensive abilities of your characters. But stickers must be applied neatly-- they must be fully on the stand and must not overlap. Sticker power generally corresponds to sticker size--bigger is better. But big stickers take up more room, so you must strike a balance.