Adventure

Adventure, also referred to as Adventure mode, is a 1-P game mode in Super Smash Flash in which the player traverses a series of levels consisting of battles, side-scrolling levels, and bonus rounds, culminating in a final battle against Master Hand and his counterpart Crazy Hand.

It was initially revealed through the Smash Flash DOJO!!! that an Adventure mode was confirmed to appear in Super Smash Flash 2. However, as the DOJO!!! has since closed and its information is no longer up-to-date, the fate of the game mode is currently unknown.

In Super Smash Flash
Adventure in Super Smash Flash is based on the game mode of the same name in . It is very similar to Classic, containing the same amount of levels, the same bonus rounds, and a similar final boss fight. They differ in that Adventure includes various unique side-scrolling levels in which the player must reach the end while avoiding enemies, as well as a different variant of the second bonus round and the addition of in the final battle.

As with Classic, the player can set and raise the difficulty level for Adventure before starting, though this will only affect the CPU opponents' behavior, as enemies will be unaffected. Lower difficulties have mild opponents that will barely attack the player whereas high difficulties have more aggressive opponents towards the player. Master Hand and Crazy Hand's HP during the final fight also depends on the difficulty selected. There are five difficulty levels: Very Easy, Easy, Normal, Hard, and Very Hard.

Clearing Adventure with a specific character or under a specific difficulty will reward the player in a certain way if the conditions were met.

Rewards

 * Complete Adventure with on Normal difficulty or higher, then beat him in a match.
 * Complete Adventure without losing any lives, then beat him in a match.
 * Complete Adventure on any difficulty with any character, then beat it in a match.
 * Complete Adventure with any character after having one hour of total play time, then beat him in a match.
 * Complete Adventure with Mario on Normal difficulty or higher, then beat him in a match.
 * Complete Adventure mode with Pikachu and Jigglypuff on normal difficulty or higher, then beat it in a match.
 * Complete Adventure with all 13 starter characters, then beat him in a match.
 * Complete Adventure with, and  on any difficulty, then beat him in a match.
 * Complete Adventure with on Normal difficulty or higher without using any continues, then beat him in a match.

In Super Smash Flash 2
It was initially confirmed that Super Smash Flash 2, would include an Adventure game mode similar to that of Super Smash Bros. Melee. According to the Smash Flash DOJO!!!, each level or world would be represented as a mini-planet themed with an associated universe, such as a Mushroom Kingdom mini-planet from the  series, which would have served as the first level of Adventure. Levels would primarily consist of side-scrolling stages with platforming segments, enemies, and bosses.

Similarly to the mode in Super Smash Flash, the player would be able to set a difficulty level for Adventure before starting. This would affect the amount of damage that enemies would deal, with harder difficulties dealing more damage overall. Higher difficulties would also increase the number of enemies present and introduce more difficult enemy types. There would be four difficulty levels: Beginner, Normal, Hard, and Insane.

Only three levels were shown of the game mode, and it is unknown how many were planned to be present.

Trivia

 * At nine characters, Adventure is the game mode to offer the most unlockable characters to face and the most unlockable features in general out of any game mode in SSF.
 * In early versions of the SSF2 Demo, there were unused files in Super Smash Flash 2 pertaining to Adventure, including a button to start the mode (as seen on the right). These have been removed altogether, as of the Beta version.