There is no dropdash, Sorry.
First of all, if you don't know about Sonic Freedom, let me explain: Sonic Freedom is a fangame set in the style of Sonic CD's cutscenes, or Toei Animation's Sonic. started by the artist Tripplejaz, and developed by MarmitoTH on Twitter. It's completely hand-drawn and animated, featuring one, massive stage to roam around. Hidden around the map are the seven Chaos Emeralds, which are not obtained by special stages. They're just hidden. It looks great, and I can't wait to play it or at least see footage of it when it's released. Here's a trailer: https://www.youtube.com/watch?v=pShY04KGfXc And an FAQ video: https://www.youtube.com/watch?v=2wWxlXeb8rQ Go show them some love! (Tripplejaz can be found on both Twitter and YouTube.)