Downloaded the DOS version that was in the "Resources" section and played it using DOSBOX. For some reason, the disk B (2nd part of the game) doesn't ask for the password you get in the first part.

This was really hard, especially the 3rd boss of the streets. I know it's not the best run, and I lost a lot of time in the transition to disk B, but honestly I'm just glad I could complete the whole game in one run. A sub 16 is just around the corner for anyone masochist enough to try.