-Repeatedly click the bucket to get the apple core inside of it. -Go to the righ and play the mini-game in the blue machine to get the UV lamp base (completed pyramid at the center red pole). -Click inside of the first aid kit to view the items inside. - Get the gloves from first aid kit.. -Repeatedly click the button of the UV light machine. A battery will fall under the bed. -Click under the bed. Put the apple core near the hole to get the battery.. -Go to the right and get the lighter from the drawer (5). -Get the umbrella and wrench from the shelf (2). -Use the wrench to break the dictaphone in the shelf (1). Note: Hit the dictaphone while it is still on the shelf. -Get the broken dictaphone and examine it. Take the battery and put the broken dictaphone back. -Get the tape from the drawer (6). -Get the lead-doped barium silicate from the shelf (4). It is the bottle at the left-most side. -Get the orange coat from the drawer (3). -Get the left rainboot from the shelf (4). -Go to the right and click the ceiling to view it. -Use the tap on the fan and get the glass tube. -Go back to ground level and go to the right. -Use the wrench on the heater, then use the glass tube on the heater to clean it. -Go to the right and examine the glass tube. Use the lighter on the middle of the tube, then use the lead-doped barium silicate on it to make the fluorescent U-tube. -Examine the UV lamp base. Put the two batteries and the fluorescent U-tube on it, then turn on the switch. -Get the black light book. -Open the black light book. Move to the last page, which appears blank. Use the UV lamp to read the page and you will find two sets of code. -Put back the tape, then go right twice. -Click the right-hand side of the safe. Get the right rainboot. -Click the safe. Enter the code as green code + blue code. -Get the bottle of lithium metasilicate from the safe. -Use the gloves and get the bottle of acid from the safe. -Go to the right and throw the bottle of acid at the door. -Use the bottle of lithium metasilicate on the rainboots and umbrella. -Use the umbrella on the door hole.