Level 1:
Tap the left square grid near the door to grab the red wrench. Use the red wrench to open the keypad to the right of the door. Next, tap the TV on the ground and observe the color combination. Use that same color combination, black, yellow, red, orange, green into the keypad onto the right. That will open and unlock the door.
Level 2:
Tap the flowerpot to the right of the door and notice the number 2 underneath. Next, tap under the desk and notice the number 8. Click underneath the table and you will see a gold ring. Tap the gold ring and use it on the jewelry box on the table to open the door. The box will contain a key which you will insert into the portal above the chair and underneath the painting. Once you open the portal you will get another key that must be entered into the right of the door. Once that unlocks you must enter in the code 7863 to open the elevator doors and exit the room.
Level 3:
Tap on the ladder to grab the hammer from the floor. Use the hammer on the board at the top of the ladder to grab a piece of string. Next tap on the red shelves and you will see a number keypad. Enter in the numbers 1, 0, 5, and 3. The numbers one and 3 must be red, the 5 green, and the 0 white. Next tap on the elevator arrows and use the screwdriver to take out the hinges. The arrows will open and you will see another piece of string. Connect that string with the piece in your inventory and that will unlock the door and you can now escape.
Level 4:
Tap on the sofa to the left of the screen to get a battery. Tap underneath the table and you will see a remote. Combine the battery and the remote and use it to turn on the TV. The TV will show the colors blue, yellow, white, and red. Enter those colors in that order onto the soda machine to the left. You will then see a message in a bottle that reveals the number combination 3945. Enter that combination into the elevator arrows and the door will open.
Level 5:
Tap on the small table to the left of the sofa and open the drawer. You will find a key inside, select the key and use it above the clock hanging on the wall. That will give you a blue and purple key. Next, tap on the wooden chest and use the blue and purple key to open the inside. Inside the chest you will find a grey arrow button. Select the arrow and place it into the missing slot next to the elevator. That open the elevator and you can escape the room!