Neutral Tips for Falco vs Mario
Mario
As a Mario main, spacing and staying away is key. Falco has a really good neutral-b, that resets your character. Falco's grab game is insane and so is his up-tilt, so staying away and keeping him out with fireballs, then approach with a grab or quick aerial, to start a combo or grab a kill. Try to beat out Falco's moves and options, to then punish with a high damaging string.
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Falco