these are all forms of up-b's
WAKE UP!!- when u hit the ground and u dnt tech,luigi is just in the laying on the ground animation..just wake and and up-b xD...
i found a quarter-when u trip,get up,up-b
stop loafin!!-b reversed fireballs,run at opponent up-b xD
luigi special-jab>up-b
tie my shoes-jab>dtilt>up-b
the matrix-air dodge to the ground>up-b
cliff hanger-get up from the edge>up-b (note,you must be under 100% or luigi will do the slow get up)
nair wear short shorts-full hop,FFnair,weak hit,up-b
the suspect special-stand there and wait for opponent to roll into you>up-b
runaway-jab cancel>run at your opponent>he rolls into you>up-b
flippin the bird-up-b OOS (out of shield)
illusion-multiple spotdodges>up-b xD
friday the 13th-wait for opponent to spotdodge>up-b
the david blaine-platform cancel>up-b
proactive-fireball>jab>up-b