Well, minus, like, three lines, actually. They are:
"A beach ball, on a cricket ball, on a bobby's helm, on a bobby, on a horse." from here https://www.youtube.com/watch?v=dF3OZZ9EcS8.
Also "But that's another story." and "And they don't even know the half of it until they watch the movie." from the Dimension of Doom online game because I'm having difficulty getting the game to play much of its audio properly. I think the first line is a recycling of audio from Unfair Science Fair (S1) which is in this video, but I'm not completely sure, and I can't find where in the game he says the second line. If you can obtain that audio somehow, please get it to me! Thanks!
And of course, if I just forgot any other lines, just let me know. I'll remake this video once I get all the extra footage and tips I can. Consider this version 0.9 and expect an update as soon as I get responses (which might be a while). I missed a clicking sound he makes to Iron Man in Mission Marvel, that I know, so it will make it into the next version.
I also discovered his talking plush contains alternate, exclusive recordings of some of his Season 1 lines. https://www.youtube.com/watch?v=s1uO4__bHt0
I liked this show a lot as a kid, so why not go on a super hard footage-gathering and editing adventure to prove it, right? I own none of this content and my channel is not monetized.
I was able to extract the audio from two Wii games because I happen to have experience with using software to rip and convert sound clips and music from Wii and GameCube games. He has like 76 audio files where he speaks in Across the 2nd Dimension, so that is definitely his biggest speaking role in all of his existence.
Thanks to help from the Phineas and Ferb Wiki's list of his lines, I was able to do this a bit faster, but they definitely don't have everything. Obviously, that means I had to have missed something. They also include lines Ferb has said, but not in Thomas Sangster's voice, which I tried to filter out. Hopefully this video will allow some of his extra lines from the games to be added to that page.
Alright, that's it. Have a fantastic day!
Timestamps: Season 1 - 0:00 Season 2 - 6:38 Season 3 - 17:28 Season 4 - 25:33 Outside the Series - 37:05