Thanks so much for the feedback! Unfortunately I did not have time to add any sort of undo or trimming functionality to the game, though I totally agree that it would help quite a bit! Could you maybe elaborate a bit on how you soft-locked yourself? Were you ultimately able to finish the game or did it hinder progress to the point that you stopped half way through?
And yeah, controls seems to be the biggest point of tension so far. Hindsight 20/20, but I do regret not adding some sort of WASD & Spacebar control scheme to the game.... oh well, something to add to the post-jam version and to learn from for the future!