Vortigaunt

In the playable Half-Life 2 Beta, Vortigaunts have a voice closer to that of their Half-Life voice.

Friendly fire was also originally to be authorized on Half-Life 2 's Citizens and Vortigaunts.

The feature can be experienced in the playable Half-Life 2 Beta; upon being hit, Vortigaunts will answer with statements such as, "You have given me no choice but to eliminate you", "Let me return your gift", "This pains me" or "Now, I unmake you", although they do not fight back.

In the playable Half-Life 2 Beta files, a texture of a burned Vortigaunt body can be found, suggesting that burned Vortigaunt corpses were also to be seen, along with Citizens', during the course of the game.

City 17 was originally to be filled with "Vorti-Cells", Combine devices used as stations siphoning power from trapped Vortigaunts.