Around 2 hours 31 minutes to beat this Japanese version of the game. The other versions dont have penalties for death and remove some weapons from what I understand. I went with this version because I mainly only play through games that penalise death, or as I call them Console Style games. This game has a few challenging checkpoints but isnt at the difficulty level of alot of these console style arcade games. Its pretty forgiving with checkpoints. I will post up a tutorial soon with commentary breaking everything down as well.
I only show the first death at each checkpoint I died on, the rest of the deaths are edited out. Showing the first death makes the checkpoint transitions much clearer. This game has unlimited continues.