Around 1 hour 54 minutes to beat. After a practice session with save/load states I was able to beat it on the first full attempt using 2 continues. The full run starts at around 4 minutes 35 seconds into the video. I reset a few times on the first stage to do it deathless. You can accumulate lives that way. I didnt lose my first life until late game and the first continue until the end of the final stage. Didnt practice some of the bosses well enough. The game has limited continues, maybe 3 or 4. I will post up an edited tutorial version soon. That will edit out the used continues and break down what I did with commentary.