Most playthroughs use shortcuts or tricks, such as bunny hopping and rocket jumping, in order to achieve a faster time.
Unlike traditional speedruns, in which a single player (or "runner") attempts to complete the entire game as quickly as possible, collaborative speedruns combine the work of multiple runners who each complete a specific part of the game.
These productions feature custom skins, models, scripts, and "recams", which show the run from cinematic camera perspectives rather than the game's default first-person view.
This feat surpassed the initial expectations of the runners and was largely made possible by the discovery of bunny hopping.
[8] This technique enabled runners to move much more quickly through levels and allowed them to save rockets and grenades for other tricks, since certain parts of the game could now be completed without them.