This game is from the more recent Captain Commando years, instead of when he appeared on the backs of old NES game boxes dressed like an astronaut or pimp.

What a name for a superhero | I'd wager his occupation is some kind of Captain.. or Commando.. | Mack is very cool. It even says so in his bio

I don't know why the programmers felt it was necessary to put "THE" in front of all the boss names, as though I were going to get the BOSS Dr.TW confused with the NORMAL ENEMY Dr.TW. THE BLOOD | THE DR.T.W | THE SHTROM&DRUK