Oddworld: Soulstorm - Easy Win The Crane Part in The Yards Level

You need to be quick in the process. Also, to continue after that to the final level you need enough Quarma. For the Quarma you will need to select the levels where you saved less than 80% of Mudokons (marked with red faces). Replay those and save at least 80% of its Mudokons then you could play the final level.