This seems to be a nice start to a game! I think maybe the color names in the game description page are wrong, that confused me a bit. I enjoyed finding ways to tightly pack things together, unless I ran out of free rerolls and I expected the cost to start going up greatly, but since it seemed to stay at 1 forever, suddenly it felt like there was no point. Just changing that to exponentially increase the cost to encourage you to try to use all of your parts before rerolling would have, I think, helped keep me engaged a while longer =). Congrats on your first game jam!