Thanks so much for the detailed feedback and for playing it through the extra levels. The instructions have been updated based on your comments (off by one due to zero counting and sublime being such a good text editor for silently also handing hex without complaining).
Good feedback on the speed, and yes much more play testing needed to knock out bugs and improve playability. Level 5 is the last level and yes there is a bug in that corner that eats components. There is no level 6 so you finished the game!