The fourth game in the Ultima series features an improved game engine, with color graphics and enhanced character interaction: the player can have conversations with non-playable characters by typing names of various topics. However, the main difference between Ultima IV and its predecessors in the series (as well as other role-playing games) lies in the game's objectives and the ways to fulfill them. Instead of building up a character by any means possible in order to face a villain in the end of the game, in Ultima IV the player is trying to become the Avatar, a role model for people. This means upholding the Eight Virtues, basically trying to become a better person. Making morally conscious decisions and helping other people is not done expecting a material reward, but because it is the actual goal of the game and the main focus of its gameplay. The game frowns on behavior typical of most other RPGs, such as backstabbing fleeing enemies or picking up everything that isn't nailed down even if it does not belong to the protagonist. This different approach established the game's reputation as the first "true" Ultima, influencing the design philosophy of later installments and the overall spirit of the series.