Guard says stop / Just kill him with your awesome (later)Now act like you didn't do it / They're not buying it (later)Kill the rider the rider falls down / Target's still fine (later still) Target pulls out his sword then goes to smell his sword / Not sure why
The long-promised "Safety Torch" song, about Toby rescuing some poor kid from imaginary Minecraft monsters by giving him, first, torches to keep them away; second, water to put out the resulting fires; and finally, charging him for them.
"Dramatic Song" is designed as a style parody of Coldplay: the gag is that the lyrics are completely mundane but if you listened to it without understanding English, you'd think it was serious and poignant.
You'd probably think I'm singing bout some pretty serious stuff. But in reality, I'm singing 'bout the lack of stuff i'm singing 'bout.
The third one also includes a separate POV from iJustine, wherein the audience hears Toby more than Justine.
As a few users have pointed out, watching Toby Games becomes ten times funnier when you pretend his commentary is the thoughts of the main character (especially funny with things like L.A. Noire).
Ten times funnier now that he's playing Arkham City. Imagine the incredibly stoic Batman thinking the way Toby speaks. In part 3, he threatens to take Two-Face's coin and pee on it.
One part of his L.A. Noire playthrough, where he's honking the horn as he's driving to his destination, then when he gets there (in the middle of a horn beep) a cutscene starts, leaving the horn blaring for the entire cutscene.
Toby's LP of Skyrim is a nonstop round of hilarity, especially when he actually gets terrified at the skills menu. "I don't want to navigate the galaxy to level up!"
Skyrim first video, when he names his character, and the followup joke: "Bilbo Baggins.(erase) Tobuscus(beat) Baggins.(erase)Just Tobuscus"
Toby improvs a song about a cheating sugar cane daddy in Minecraft: here. Seriously.
Toby: Ubisoft presents... a game by Ubisoft. And Ubisoft. And also Ubisoft...
Toby dug a hole to hell beside his house in Terraria. A ridiculous amount of bunnies proceed to commit suicide by jumping into the hole, and Toby nearly has a mental breakdown over it (when he's not hitting on Nurse): 
Also in Terraria, Toby has a Bone Serpent follow him to the surface because he wants to keep it as a pet.' 
Parts 31, 32, and 33 of his Minecraft videos are a textbook example of From Bad to Worse. In Part 31, Toby drowns in the water near his house when he forgets to surface for air. Then, because his bed was obstructed, he doesn't respawn in his house and has to find where he died, a problem made worse due to his No Sense of Direction. In Part 32, Toby is forced to turn the game to peaceful mode as he dives for his items, almost drowning again in the process. Having spent half the video looking for his items, he goes off to bed... and dies because it was obstructed, losing his items and being teleported away from his house again. Part 33 is entirely comprised of him trying to find his house.
This fan-made video of one of Toby's stranger Minecraft ramblings, in which a little zombie asks for brains for Christmas, then Santa gets into an argument with the zombie's mother.
In "Worldbuscus 1.2", a situation very similar to Part 31 plays out. Toby attempts to build a drawbridge for Fortbuscus...while underwater and covered in ice. He drowns. And then he ends up back at his original spawn point, from which he always has trouble finding his house. AND THEN HE GETS THE "SAVING CHUNKS" SCREEN.
CHUNKS SAVING has Toby dying twice in the first 3 minutes while recollecting his items.
In his recent Zelda playthrough, Toby gives the guy who teaches you how to target things his Grandpabuscus voice.
In his Minecraft Let'sPlay, Tobuscus falls victim to the ever-classic Enderman Roommate. This goes as well as you'd expect, with Toby LOOKING AT IT upon waking up from a nap. Eventually, it teleports into the lake surrounding his house, and as we all know, Endermen can't swim. Cue Toby mourning his death for five seconds.
In SNEAKY CREEPER a creeper jumped onto Toby's treasure chest when he was around the corner and couldn't see it. He freaked out when he did.
In the 200th Minecraft video spectacular, Toby is blindsided by a zombie breaking down his door.
SURPRISE ENDING has a zombie pushing Toby into the lava at the end. He goes through his usual subscribe speech in a state of utter, hilarious despair.
Lee: NO! You don't touch that boy, you don't touch ANYBODY!
Toby:(as lee continues his speech) YOU UGLY AND YO EYES ARE UGLY-LOOKING TOO! LOOK AT YO UGLY EYES, YO LIPS ARE TOO BIG! YOU GOT A BIG CHIN!
During the major early plot twist in Assassin's Creed III where Haytham welcomes Charles Lee into "the fold" which actually are the Templars, Toby's only thought is "How did that drunk guy (Thomas Hickey) get into the fold?"
In Kingdombuscus, his constant failure to realize that he's the king of the castle he keeps breaking.