The difficulty of the fight largely depends on the version: The NES and Mega Drive versions are the hardest, as his laser blasts deal two blocks of damage, and the initial pattern he fires them in (One high shot, one low shot, and one middle shot) can successively hit the player enough to kill them. After firing, he jumps to a new spot, dealing two blocks of damage if he lands on the player. After he's taken enough damage, his firing pattern changes (one low shot, one high shot) and his jumps become far more frequent and erratic.
In the SNES version, he is significantly weaker. His laser attacks only deal one block of damage, can't successively hit the player and follow the same pattern. He also only jumps in the same place and never moves unless hit by the player.
