If you want some manslaughter and you feeling blood-thirsty, prepare to choose from an arsenal of weapons. Since the game lacks a specific objective, unlike in real-life, where you have do daily tasks, eat, sleep, try to stay away from killing anyone, here, it is exactly the opposite! You can do all those crazy things you aren’t exactly allowed to perform IRL.
If you feel like playing the game fair and square, you can wander around town, and choose some weapons from hidden locations or just grab an ax from the school yard (or a shovel if it goes better with your outfit) and smack the other students and townsfolk. Along with those two weapons, there are also pistols, spears, knives and magic-gifting hats.
But if you feel like getting violent, I suggest to be careful because there is also police, if you want to call them, and they will bring some extra spice to the playground. Some of the other characters will be peaceful if you don’t have bloody hands, but if you walk around swinging a blood-drenched spear and a blood-stained shirt, try not to stay in one spot because some characters might not like that and aim to kill you instead.
As for the best weapon, try the magic Cat Hat! Or the Spear.