after beating find the path floor and pull the lever you freed prototype.

"Oh Thank you, Flesh being!"

He walks and found a elevator.

"Ohh whats this?"

he enters the elevator.

"ohhh interesting!"

he stands in the other side of the elevator.

"ZZT- i love it here!"

the elevator door closed and descend.

"Waow."

"it can ascend??"

he looks at the roof of the elevator.

"Thats really very interesting."