That was a loaded question, because yes there is! You can download it right here (this is a new link; the old one expired):
NOTE: if your browser experiences difficulty following the link, try copying and pasting the link directly into your browser.
Once downloaded, check the readme, and start spreading the word about Shantae: Half-Genie Hero! You can use everything there to make silly images, tweets, posts, or any other fan-made creations (non-profit please) that will help tell more people about this game.
Short on time? Re-tweeting us is highly effective. You can follow us on Twitter: @WayForward