Got the door key, a hammer, a piece of paper, and a long stick. Seen some multicolored 5's under the computer chair and know that pressing the button above the door with the stick triggers a panda tackle.

There was a screwdriver in the one dresser drawer that wouldn't open. I got it by pulling out the drawer above it, and used it to remove the panel on the bomb.

Used the screwdriver to unscrew the number panel by the bomb, revealing a brick. Smashed it with the hammer to get a key, which I used to open the locked drawer at the computer desk. Got a transparency and used it with the 5's to get a strange code I can't use.

...the code from the transparency over the 5's is a series of colored numbers. But I can't tell what order they go in, and I know you can't subtract a four-digit number that begins in 2 from a four-digit number that begins in 1.

Oh, and I've figured out what the numbers on the side of the dresser mean. The X's aren't part of the Roman numerals.