I read online that the new Pal will have less jokes as these are repeated too much and will have more games and 'trivia' about the park. These are programed into him. As for the info on rides I belive from what I have read all these are pre-programed and triggered via the infared signals. I found this about how it works.
Bruce Vaughn "The doll's head is designed so that the speaker actually picks up a little more—it's a better speaker than other toys have. We also came up with a process of recording and compressing the audio that is unique and that allows us to get a lot of information into a small package and keep the quality very high.
Also, you know, that's all pre-programmed stuff in there, and what it's waiting for is a signal from these emitters that says, "Play this joke. Play this sequence." We didn't want to have it say the same thing over and over again, so there's a small computer in there that's making decisions. You can unlock things by the more experience you do, so the more you do, the more the toy has to tell you. We're trying to make sort of a bonded friendship where there is some knowledge of a history and awareness, seeming awareness, from the character."
Bruce Vaughn "The doll's head is designed so that the speaker actually picks up a little more—it's a better speaker than other toys have. We also came up with a process of recording and compressing the audio that is unique and that allows us to get a lot of information into a small package and keep the quality very high.
Also, you know, that's all pre-programmed stuff in there, and what it's waiting for is a signal from these emitters that says, "Play this joke. Play this sequence." We didn't want to have it say the same thing over and over again, so there's a small computer in there that's making decisions. You can unlock things by the more experience you do, so the more you do, the more the toy has to tell you. We're trying to make sort of a bonded friendship where there is some knowledge of a history and awareness, seeming awareness, from the character."