Peach lunges her rear towards her opponents after a stationary twirl and blasts them with a powerful explosion. In Super Smash Bros. Melee, the explosion has flame effects, but as of Brawl, it is filled with hearts. Daisy's is functionally identical, but has yellow flower effects instead of pink heart ones.
Using the Peach Bomber on most walls in the game will cause Peach to rise upward a tad bit. This can help with recovery on stages with vertical walls, such as Yoshi's Story and Fourside. The technique can also be used to stall a match, as Peach can continue to bomb the walls, keeping her alive and out of range from most other characters who would be KO'd if they were to try to go and attack her. Use of the technique in this fashion is banned in most tournaments.
In Super Smash Bros. Brawl, it has been altered visually to have a heart-shaped explosion when the attack connects, rather than a normal explosion. This version of the attack covers more distance than in Melee. Also, it can no longer be used to bomb walls for vertical height gain. However, if a wall is destructible, such as those in Shadow Moses Island, Peach can still rise a tad upward. There is also more start-up lag. It can be used for recovery since it covers horizontal distance in both games. The move now auto-sweetspots the ledge as well.
In Super Smash Bros. 4, the move has a faster start-up than in both previous games, as Peach executes the attack almost immediately without twirling first. It can also hit shields. However, it only deals 10% damage (rather than 15% in Brawl), and has much more end lag, limiting its recovery potential. The move now leaves a trail of hearts. Its ability to rise on a wall is retained from Melee, to an extent.
In Super Smash Bros. Ultimate, the move deals 12% damage and more knockback, and can deplete half of a foe's shield; it also has less startup and ending lag. The move's range can be extended by using a smash input when performing it.
Special Move customization was added in Super Smash Bros. 4. These are the variations: