flags are nice actual song is big boss from the adventures of batman and robin on the sega genesis
kaiser's main gimmick is that he changes his size freely. his first phase has him twice as large as he normally is whilst trying to clobber the player via stomps and various other attacks. his second phase has him going into the background 5 times his normal size and trying to squash the player via his fists, head, and other objects around him. his final phase consists of a climb up a tower as he chases from the bottom of the screen in attempt to chow down on the player if they're too slow. the battle ends when the player reaches the top of the tower.
