Still the same "Mario Kart" style. Each weapon is put in the list in a random order and it is all spun around. Anything on the wall will not be in the Box.
Some things like the Monkey Bomb, Freeze Ray or Thundergun have a percentage chance of being in the list, and even then that's no guarantee they'll be picked. The chances are usually 10% and they won't show up until after a certain round or until after the Box has moved from its original place.
The Monkey Bomb is a special case for the Mystery Box, it is given multiple counts in the random list until a player has it. Before Round 10, the Monkey shows up in three spots in the random list. On and after Round 10, the monkey goes up to five times in the list. Once a player has the Monkey Bomb, it goes down to 1 count in the list.
The Ray Gun will be limited to one per every movement of the box. If a player gets a Ray Gun, it won't show up in the list until the box is moved again.
The Freeze Ray and Thunder Gun are limited to one per team. Using the old Tesla Rifle code, they have a percentage chance of appearing in the box list.
After Round 5, the super weapon has 15% chance of being put in the list. After Round 10, the super weapon has a 20% chance. Once acquired, it has zero chance of appearing again. If the player drops the weapon, the chance returns to 20%. Even if the weapon appears in the list, that's no guarantee it will be chosen.
The box has a 15% chance of calling Teddy and teleporting the box in the 4-8 box open range. The box has a 30% chance of calling Teddy in the 8-13 range. The box has a 50% chance of calling Teddy after that amount of openings in one spot. The first location will always call Teddy in by the eighth opening.