Okay, this is not standard English at all - it's a chain of jargon and in-jokes from the field of artificial intelligence (and computer graphics) that dates back a few decades.
First of all, the word "bird" in some New York City dialects is pronounced similarly to "boid" - linguists would say that those accents are non-rhotic (that is, they drop the /r/ sound).
Second, when a computer scientist named Craig Reynolds in the 1980's started developing algorithms that mimicked flocks of birds, he called the individual particles boids, which both imitates the New York City pronunciation of "bird" and is an abbreviation of "bird-oid object," using the suffix -oid, which means "something that resembles a specified object."
Reynolds' flocking algorithm has been enormously influential in the field of artificial intelligence (generally, this sub-field is called swarm intelligence) and computer graphics (in the field of particle systems). Anyone who has done serious programming in this area would be familiar with Reynolds' boids (personally, I've implemented variations on his algorithm two or three times over the years).
Your link says that the "Boidmachine" fires a "massive particle blast." I don't know how those particles act (never having played the game), but if they are at all self-directed and interact with each other in a swarm-like manner, then they are almost certainly using some particle system algorithm that is a distant relative of Craig Reynolds' original Boids algorithm. That would explain why it's a "Boidmachine" - it's a machine that fires boids (algorithmically swarming particles).