I actually made it to be a tad long on purpose, it can make you want to not type it in it's entirety, and based on how you type it you get a different transition into the manager sequence, as regardless of how you perform you will end up promoted to manager (the dialogue in these transitions plays a bit more into the theme as well). And there is also the small easter egg of getting a perfect score from just submitting after typing 'invincible', since I realized it would be a pain to have to type everything for the good transition (especially in testing).
Overall though, glad to hear you enjoyed the game! Yours seems quite impressive as well (even if I did manage to get stuck on one of the first bodies on my first try)