One of the Best work of Tobe!
Positives:
1.Eerie atmosphere of the apartment. (Dark, lonely & creepy)
2.Each character designs. (The Lead, helper boy, killer, etc.,)
3.facial makeup of killer (scary)
4.weapon used to kill. (Unexpected but as the title)
Nothing to pointout in negatives.
It's a dark entertainer. Gives good tension and thrill. Enjoy it on a rainy evening.