You get sucked down through a tunnel into Test Tube’s laboratory, after pushing the water and Dr.Fizz buttons on the vending machine repeatedly. You decide to go down the elevator to floor C.

“Huh?..”

Test Tube turns around as you lower down into her underground laboratory

“W-what are you doing here! Get out! I guess this should just be a museum at this point with the amounts of people coming down here!”

Test Tube locks room 21 and faces you. She looks overworked, pale, and too tired to deal with you at the moment