Battle of the 99 Heartless?

Battle of the 99 Heartless? is event #21 in Super Smash Flash 2.

Overview
Playing as, the player must defeat a total of 99 es on Twilight Town within a time limit of 5:00. Up to four opponents can appear at once and defeating one will cause the next one to appear. On random occasions, giant, tiny, and metallic variants of Mr. Game & Watch will appear alongside the normal ones. The player has 2 stocks, and each opponent must be KO'd once to be defeated. The launch rate for opponents is set to 3.5 so they take much more knockback from attacks, and they also deal 22.5% less knockback than normal.

Rankings
The ranking the player receives is based on how much time the event takes to be completed. The specific conditions for this are listed below.

Trivia

 * Clearing this event will unlock The World That Never Was.
 * This event is based on "The Battle of the 1000 Heartless", a story event in KINGDOM HEARTS II in which Sora, alone, has to defeat 1,000 Heartless who are attacking the world of Hollow Bastion.
 * The metallic variants of Mr. Game & Watch may be a reference to Nobodies, which are often white and gray as opposed to the purple and black Heartless.
 * The increased launch rate for the Mr. Game & Watches may be a reference on how the Heartless have weaker stats than normal in "The Battle of the 1000 Heartless".
 * This event and Multi-Man Smash are the only instances in SSF2 where more than four characters' damage meters are on screen at once. Sandbag Soccer, Sandbag Basketball, and Ditto may also load a fifth character, but they are not counted by the game as separate combatants in those cases.
 * The music track Rowdy Rumble always plays during the event.
 * Prior to Beta 1.0.1, Sora only had one stock in this event. This was changed to two stocks to make the event easier.
 * Additionally, the opponents dealt normal knockback to Sora, but Beta 1.0.1 changed that; he now takes less knockback from attacks in this event.