Uploaded September 2020 | Updated September 2026, 2 weeks ago

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Another 3 frames saved compared to Freezard's 6.28. He discovered that with some pixel perfect positioning, it's possible to get the lower hitbox of Doc's up-B on frame 5 which has much higher base knockback than the "regular" hit. By using this hitbox, it's possible to hit 4 a frame earlier, which previously would cause 5 to get hit by a "bad" hitbox. This good hitbox is also used on frame 10.

The hitbox can be viewed here: meleeframedata.com/static/gif_stills/dr._mario/upb/7.png

Regular WR = 6.55 by Ravenyte and Vegeto
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