Around 22 minutes to beat. For a bullet hell game this seems very easy as Im not experienced with this style of shooter and only lost 2 continues. Very fun game though. I set lives and bombs to max and continue was set to On. I will try the other games in the series and ports of this game soon for some potential easy kills.
Lost continues edited out. I show the continue screen on the two stages I continued on. It seems you have unlimited continues and you restart whatever stage you were on with all your lives. I only continued twice but saw no number of credits listed. Alot of japanese shooters have unlimited continues as well.