- Armors
  - HEV Suit
  - Gordons Glasses
  - Barnie Armor
  - Scientist Garb
  - Rediculous Ties
- Boss Fights
  - Gonark Boss Fight
  - Tenticle thingy bossfight
  - The Nihilanth Boss-Fight
- Entities
  - Enemies
  - BullSquid
    - Headcrabs
    - Headcrab Zombies
      - MC Zombies
      - Scientist Zombies
      - Barnie Zombies
      - HEV Zombies
      - Combine?
  - Passive/Neutrals/Allies
    - Kleiner
    - Other Scientists
    - G-Man
    - Vordigaunts
    - Barnie
  - Tamable/Pets
    - D.O.G.
    - De-Teethed Headcrabs
- Other Weapons
  - Phys Gun
  - Gravity Gun
- All HL1 Weapons
  - Pistol
  - Revolver
  - SMG
  - Shotgun
  - Rocket Launcher
  - TAO Cannon
  - Grenades
  - Snarks
  - Ghost Busters Pack
  - Opposing Force Portal Gun
- Items
  - G-Mans Suitcase (potential GMAN doors?)
- Blocks
  - Vending Machines
  - ~~Crates~~
    - various Sizes
  - Metal Fence
  - ~~Trash bins~~
  - Microwave
  - Barrels (all variants)
  - Grate bridge floor
  - ~~ERROR Model~~
  - Initial security room floors (when barnie lets you in at the beginning)
  - Black Mesa Tiles (From right after above section)
  - Black Mesa Sliding security door
  - White board
  - ~~Filing cabinet~~
  - Authorized personnel only sign
  - Hanging Fluorescent light
  - Black Mesa wall computers/controls
  - Break room trash can
  - Locker-room lockers
  - The retinal scanner (redstone output if correct person uses it)
  - Metal Ladders
  -
- Healing/Charging stations
- Toxic Goo
- Xen
- Anti-Mass Spectrometer (and Portal Storms? Resonance Cascade?)
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