Devil Fish (known as Ichtyion in Super Nova) is one of the "paired" bosses (same boss in 2 different zones) of Darius Force. Interestingly enough, in the special boss endurance mode it is called "Ichtyion" instead of Devil Fish. It is shaped after a Giant Squid (Architeuthis dux).
Gameplay[]
Its attack patterns depends on the zone where the player faces it.
Zone G (red)[]
All its firepower is based on lasers. When the battle starts, it charges and shots a paser-based spread shot from its nose-like cannon, and grenades from its head. It also has a huge tentacle (just as Mudy Crystal) that makes serpent-like moves, but it won't regenerate after the player destroys it. The tentacle, the cannon and its forehead are the first Devil Fish's weak points. When the three are destroyed, it will show up a blue spot (its last weak point) on its forehead, from where it will shot small laser bullets.
Zone I (gray)[]
Same as the former. The difference is that its first attack, besides of its grenades, is a normal gun (normal from enemy's perspective) and the blue spot will shot normal-based spread shots.