The Pixel Art subreddit has some links for those looking for starting points courtesy of lowspec. If you don't know where to start or what tools are available, check these out:
Brandon James Greer is a pixel artist and makes pretty neat, inspiring and technical videos.
This one will help you understand what this Jam is technically looking for from your art.
160px x 144px which works out as 20 by 18 8px square tiles. To play on the ROM it needs to repeat tiles so there are 192 tiles or less.
