Not every objective, but enough to 'beat' the game
YouTuber and speedrunner GeorgeThePlushie has set a new record for Tony Hawk's Pro Skater 2 -- an any percent speedrun of three minutes and 26 seconds. How does he do it? By navigating the menus faster than most humans can even comprehend, and completing the bare minimum of objectives that are required for finishing the game.
As someone who has completed Tony Hawk 2 in roughly 15 minutes, this looks legitimate. Although the whole video is 5:26, the gametime is 2:50, and the total time is 3:26.
I must admit, I have a soft spot for non-TAS videos, and I could watch this over and over. The fact that he completes this run within the confines of the actual game is extremely impressive.