To fly and swim in PLS DONATE, you need to enable low gravity first. This setting is crucial for the trick to work.
Once low gravity is on, hold down the spacebar. This action will help you start floating in the air.
Now, to begin swimming, hold the control keys ‘Z’ and ‘X’ simultaneously. This allows you to swim in the air without any cheats.
Practice these steps a few times to get the hang of it. Soon, you’ll be flying and swimming like a pro in PLS DONATE!