The mechanics are great, and the game was fun! I was surprised to find out that this was your first game, I could very well see this being a full puzzle game. At first I was overthinking it, trying to use the block colour to determine how many more collision I had and how many it would take to reach the goal with that colour. But then I realized that many levels had the correct colour placed near the goal, and that I didn't need to think nearly as much, haha. Good work!