Great game! I had known about BF for a while, but never got around to learning it (despite it being only 8 commands), but this made it incredibly easy to learn and conceptualize! The puzzles are just the right level of difficulty, and I love the sound effects that go with them! My only complaint is that you did not actually solve the halting problem, and I was able to make the game "loop infinitely" after only 10,240 steps in sandbox mode (I did not deduct rating for this since you are bound by the laws of computation). Fun puzzles, simple visuals, intuitive UI, and satisfying sounds all make this an incredible game worthy of success!