Valve's classic FPS game Half-Life has a special place in the hearts of players, and the original version still has a large number of fans playing. Recently, a player discovered a new Easter egg from the game, which has been hidden for twenty years!

The Easter egg was discovered by Half-Life and YouTube anchor Marphitimus Blackimus, who uploaded a demo video earlier last week about a broken computer in a particular scene.
The version of the Easter egg is Half-Life: Decay, a half-life twin mod developed for the PS2. The normal version sees the ending from Gina's point of view, and Gina is one of the two scientists working together in the campaign. In Half-Life: Decay, you'll be able to see the game's last special scene from Clett's perspective.
If you do, you'll notice a broken computer in the corner of the room. If you stay in front of the screen for a few seconds, you'll see a cascade of sparks flashing on its surface. The sparks appear to be random, but Marphitimus Blackimus discovers a little secret through investigation: if all the spark effects are activated through the map editor, they are concatenated to present the letter "MA". And MA is an acronym for game level designer Matthew Armstrong.
Matthew Armstrong didn't do this once or twice, and one of the maps in Team Fortress 2 also had an Easter egg about MA.
Overall, this Easter egg is only a routine operation and is not hidden deeply. To know about one of the other Half-Life Easter eggs, the player needs to hit the corpse about 600 times to find it.