Antony congratulates them on making it through his Splosh bootcamp and tells them that they need to take turns to demonstrate each thing they learned. Antony sits down in the judge's chair to the side and explains how each of the two boys should take a turn of a few minutes to demonstrate:

1) -multiple head dunks sitting up between each one

2) Slamming their face into slime pies

3) 1 slow slime being poured on them from above... taking it however they want as long as it is poured slowly and they look up into it

while showing off what they learned from the feet lesson at some point during their demonstration.

We see them each do that, and then Antony chooses a winner by sliming the winner from behind again, as they sit, so it is a surprise. The winner (spoilers in the pictures) looks up into it with a smile, being proud of this great honour of graduating top of his class at Splosh Training.