Kristoffer uses a stepladder
Here's a description of the contestant's attempt. Someone's probably working on collecting some images to illustrate it.
Before Kristoffer's attempt is shown, Live predicts his exact strategy, and is visibly frustrated about it. Kristoffer guesses that he will be able to complete the task in just 30 seconds, and then fetches a ladder and uses that to raise himself up to the net so he can just drop the bun in without any risk of missing. He then carefully spaces his 'shots' out, so he can finish as close to 30 seconds as possible (just 72 hundredths of a second out, according to Olli). Back in the studio, Live can be heard screaming, and ends up curled up in a ball in front of her seat. Kristoffer unsurprisingly earns first place in the task for his smart strategy.
(Written by Karl Craven)