Yes we did indeed make everything from scratch, except for the font, few sound effects and the explosion sprite, which I took from our last year's entry Randomancer. It really helps that I have been using the same color palette for multiple games, including my main project Ants Took My Eyeball. We also did a lot of animation with code, reducing the need for animation frames. Each character actually has only 3 frames, 2 for walking and 1 for taking damage!