Classic

Classic mode is a 1 player mode along with the Adventure Mode and All-Star Mode in Super Smash Flash and Super Smash Flash 2, where you fight the characters in a series of levels, and in different stages. In Super Smash Flash, there are 2 bonus stage, one called Break the Targets, and the other Race to the Finish. In the sequel, there will be other bonus stages along these two. Only Break the Targets can be played separate to the Classic Mode. The final stage is always a fight with Master Hand in the Final Destination stage.

In Super Smash Flash
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In Super Smash Flash 2
Classic mode was confirmed during the second McLeodGaming Direct, being similar to previous iterations of Classic, but featuring a new twist called the Peril Roulette which will give advantages to the opponent or handicaps to the player, depending on the difficulty.