Picking up weapons
From DisastrousConsequences
When you initially run over a weapon pickup, you have a 33% chance to get a magical weapon. Certain types of weapons appear more often than others (for example, energy and protection are significantly more common than rage or vorpal). If you pick up a weapon that is not a one-drop weapon (a weapon that does not have a * in the name, such as piercing, energy, etc.), if you toss that weapon and run over the pickup again, you will receive the same weapon. If you pick up a * weapon, toss it, and run over the pickup again, you will have an all-new chance to pick up a different magical (or not) weapon.
Also of note is that you can "share" certain weapons (ones that do not have * in the name) with others. For example, if you get a Flak +4, you can share that weapon by tossing it to someone and running by the flak to pickup another one. If you have a non-cursed, common (not *) weapon, and someone tosses you a different, non-cursed, common weapon, your inventory will remember than you can pick up both items.
Example
You have a Flak of Energy +2. Ziggy offers you a Piercing Flak +6, so you toss your energy flak and pick up the piercing. If you toss your piercing flak, then the next time you run over the pickup you will receive an energy flak (since that is what you had first), and if you toss your flak again then next time you will receive a piercing flak. This will continue either until you die, the next game begins, or you disconnect, whichever happens first.
