This was going to be a "weakest version of link that can take on Risky Boots" thread, but I decided on this version, to see which versions of Link that Risky Boots (of the Shantae series of games) could fight.

Link (Skyward Sword)

Link (Minish Cap/Four Swords)

Link (Ocarina of Time/Majora's Mask)

Link (A Link to the Past/Oracle of Ages/Oracle of Seasons/Link's Awakening)

Link (A Link Between Worlds/Triforce Heroes, assuming that the Link in Triforce Heroes is the same Link as in ALBW)

Link (Hyrule Fantasy/Zelda II)

Link (Twilight Princess)

Link (Four Swords Adventures)

Link (Wiind Waker/Phantom Hourglass)

Link (Spirit Tracks)

Link (Breath of the Wild)