Okay. The boss is intended to be the first appearance of a biomechanoid enemy, but a fairly powerful one. Let's just say it will be a unique version of a biomechanoid (Netricsa). Now I'll move on to the enemy description. I'll just note that this is an arena boss.
1) Health - 9000. These values are taken because I am making an enemy based on an enemy from another game.
2) Attack. Like the red biomechanoid. But if possible, as an attack boost, you can make an attack with 4 rockets instead of 2 rockets.
3) Color. To distinguish it from other types, let it be orange.
4) Speed. He's pretty powerful and again I'll mention that he's based on an enemy from another game. So for balance he should be slow enough, and on all difficulties. Let his speed be half of Sam's, but you can make it even slower so that he stays slow on higher difficulties.
5) Since this is a boss, let's make it a little bigger than a green biomechanoid. Somewhere around 1.75 times bigger than the red biomechanoid. Considering that the green biomechanoid is 1.5 times bigger.
It's unlikely that this will be applicable anywhere other than my mappack. You can name them like key items. By adding CaptainPelmen_"Enemy".