|N version||1.2 and later|
Method 1 (NEHS)
Get to the launchpad at the bottom, and launch yourself onto the bounceblock above it. Get onto the northwest-facing launchpad, and launch yourself onto the top of the middle surf. Get down into the terminal area, and activate the terminal. Use the bounceblocks to get back up, dodging the lone zap drone, and get to the exit.
Congratulations, you've beaten Episode 20, therefore unlocking Episode 21!