You need to escape the virtual world of the evil Dr. Aki.
Use the door on the right to enter the building and down the stairs. Use the orange door to find a skeleton behind it. Take the BONE from the left arm of the skeleton and walk further down the stairs. There’s a ROPE hanging. Take it and go down more stairs. Now there’s a big gap in the floor. Use the rope on the gap and then use the rope to climb down the gap to the floor below.
The door is locked but you can use the bone on the door to smash it open. Talk to Dr. Aki to learn more about the virtual world and his evil plans. After the conversation the doctor will shoot you on the count of three. Before he can kill you, use the bone on Dr. Aki to kill him.
Game source: A copy of the game was found here on the internet.