Hi Flafy!!! Thank you so much for playing our game and your comment! Yes we did realize that the final level could be solved without our reversing item (even hours before we submitted our game) and we argued for if we allow the player to do so. Well consequently we reached the conclusion that we don't want to teach the player how to solve each level and we don't want to limit the solution to only one, so we left it as it is. Congratulations on finishing the game without being constrained by our guidance, you should feel really proud haha!!