While gameplay from Fallout 3 was retained for Fallout: New Vegas, Obsidian Entertainment worked upon providing the game with improvements upon existing elements while introducing some old and new features to the series. Some improvements and new features are included. Combat is improved upon, with the V.A.T.S. system being updated with several new V.A.T.S.-specific attacks, and a number of kill animations being made for several of the game's melee weapons. The response and accuracy given from weapons were also improved. Players can use the iron sights on firearms, with the exception of certain larger guns and some energy weapons.[11][12][13][14] The third-person perspective in the game was redesigned to be more "over the shoulder" than it had been in Fallout 3. The Character Creation section of the game was refined to take less time than Fallout 3, with players able to skip the tutorials and proceed across the Wasteland once their character is set up. The option to make any last minute changes to their character occurs when the player steps beyond the boundaries of the starting location of Goodsprings. More Perks were added to the game to provide greater options for improving the player's characters upon leveling up, and perks that only added to skill values were removed. The player can only take one Perk every two levels instead of every level like in Fallout 3, in an attempt to prevent players from becoming too strong early in the game. More weapons were added to the game, including the 9mm Pistol, the Single Shotgun, Powder Charges, Dynamite, Trail Carbine, and Grenade Launcher, with each weapon added being intended to serve a specific and tactical role within the game.[14] The "Big Guns" and "Small Guns" skills are consolidated into one skill, "Guns", and the skill of Survival was added, adapted from the first and second game's Outdoorsman skill. In New Vegas, this skill affects how much health is restored by food and drink. Skills have a larger effect on conversation choices; whether a dialogue option will succeed or fail is shown up front, and entirely dependent on Skill level, rather than both skill and chance as was the case in Fallout 3.[13] Players can receive a temporary boost to a skill by reading a skill magazine corresponding to it, which can be found around the Mojave Wasteland or purchased from vendors, the effects of which can be further enhanced by certain Perks. Players can gamble by visiting casinos across the wasteland and purchasing chips with one of the three currencies available. The games available at these casinos are blackjack, slots, or roulette, and success rate is dependent on the player's Luck stat. Players can also play a card game called Caravan, which was specifically designed for the game and has its own rules, and can be played with certain people outside of the casinos.[15][16]