Chili sauce. Go downstairs, wait for DS to go to the kitchen at the left door, then go back to the living room, go upstairs, get the key, go to the balcony, get the cactus, wait for DS to sleep in the bedroom on the balcony, and use the right button to get the key to the bedroom.
Put the cactus on the alarm clock, put the Chili sauce in the cup with dentures, go downstairs, go into the kitchen, put the biscuits in the cake box, put the gasoline in the bottle, and go downstairs to put the pigs. Wait for DS to enter the kitchen at the left door.
Go upstairs to the bedroom, put the nails on the bed and put the banana peel. Wait on the balcony.
S2-4: Take nails from the closet, growth agent (green bottle) and burning oil (brown bottle) from the bathroom. Go to the kitchen to get banana peel, and get bad wine in the refrigerator. Go downstairs and wait for DS to the left door.
Eat in the lobby, go into the kitchen and enter the living room by yourself, use the left key to enter the bedroom, tamper with the fire extinguisher, wait under the bed, wait for DS to go upstairs for a barbecue, go downstairs, enter the balcony, put the green bottle in the watering can, and put the brown bottle in the wine.
Go into the bedroom, wait under the bed, wait for DS to enter the balcony, go downstairs, right-click the nail on the seat, exchange bad wine for champagne, and wait in the kitchen.