Arthur is very difficult to play when he is not equipped. He will stand up in the later stage. In the first two floors of the shooter, you can kill without buying any equipment. Every attack is very fast, within 18 minutes (unless it takes too long to find the invitation). The dog-headed boos have blind spots, not to mention all the beasts, and the pillars are all You can hide, so you have to roll around at all times in the later levels and boosts.