Thanks for playing. I increased the expected gameplay time. I did a playthrough knowing the layout and it took me about 9min so I also included n estimate for subsequent playthroughs.
The game was intended to be played using the bombs making it a bit of a mess of the dungeon and opening up areas, transforming the level, but maybe I could make some tweaks to them, maybe have less of them drop or something. Sad you RUG away from completing the game, I am fairly satisfied with the ending part. Anyway big thanks for your feedback!