Method 1:

Method 2:

Method 1:

With hitlag

Method 2:

With hitlag

Out of Shield:

Fatest:

Slowest:

There are two methods to perform an up-b cancel. From standardtoaster's hitbox guide:Frame 3: forwardFrame 4: backDr. Mario will end up facing backFrame 2: anywhere but full forwardFrame 3: backFrame 4: anywhere but back,diagonals included (upback, downback)Direct link for better control of frames - http://gfycat.com/MinorSeriousKakarikis (hitbox)(move cancels and you are in speciallandinglag)(can now move/attack)Direct link for better control of frames - http://gfycat.com/VainVibrantArabianhorse You have to hit forward on frame 3, but have 3 frames during hitlag to start pressing back. You must be pressing back on frame 7(hitbox)(hitlag)(hitlag)(hitlag)move cancels and you are in speciallandinglag(can now move/attack)Direct link for better control of frames - http://gfycat.com/SpiritedGentleGhostshrimp (hitbox)(move cancels and you are in speciallandinglag)(can now move/attack)Direct link for better control of frames - http://gfycat.com/EmbellishedSpotlessHarborseal You have to hit back on frame 3, but have 3 frames during hitlag to move the stick anywhere but back, so:(hitbox)(hitlag)(hitlag)(hitlag)move cancels and you are in speciallandinglag(can now move/attack)Edit: The gifs have somewhere down the line been a tad messed up. They are still accurate but the initial wait frame is shown 3 times before the first frame of the up-b starts, and the ending wait frame has gone. Where it says LANDINGFALLSPECIAL 28.13 in the top right, that is the very last frame of lag, and the next is a wait frame.Direct link for better control of frames - http://gfycat.com/EllipticalEquatorialBullfrog (using method 2 with hitlag)(goes into jumpsquat)(hitbox)(hitlag)(hitlag)(hitlag)move cancels and you are in speciallandinglag(can now move/attack)Direct link for better control of frames - http://gfycat.com/ShamefulInsecureDevilfish (using method 2 with hitlag)(goes into jumpsquat)(jumpsquat)(jumpsquat)(jumpsquat)(first frame airbourne)(hitbox)(hitlag)(hitlag)(hitlag)move cancels and you are in speciallandinglag(can now move/attack)(note: you can actually up+b cancel after the second frame airbourne if you short hop, but irl you will be holding up and will fullhop)quick thought: why have I never seen a randall lag canceled up-b cancel? it would be the ultimate humiliation to someone trying to be saved by him, and then you could easily combo it into any aerial.