To get this achievement you must beat Risky Boots as the Tinkerbat in any version of the game where Shantae is the main playable character to where she can transform (Main Game, Hardcore mode, or Hero mode). this achievement is very similar to Queen of the Seven...Cheese? achievement from the original Shantae Half Genie Hero with the exception of using the new Tinkerbat transformation. To get the Tinkerbat transformation you must purchase the Dryad Dance from the Snake vender and trade that dance for the Tinkerbat Dance. Once you reach Risky Boots you can tackle this achievement just like the Queen of the Seven...Cheese? achievement dealing enough damage to Risky then change into the Tinkerbat at the last minute. I should mention that I personally got this in the Main Game mode of Shantae with all upgrades including the Magical Tiara (infinite magic) and just using the Tinkerbat during the entire fight for the Tinkerbat deals five damage to Risky.