Rifle Demon

Rifle Demon is a monster from the Disgaea series. It comes in various colors as you level up. In Disgaea it has the ability to never miss any attack but has poor movement. It also has 3 eyes 2 horns and an arm-mounted laser cannon and because of this I give the Rifle Demon 7 out of 10 Tentacles.

Tanzra

Tanzra is from the super nintendo series Actraiser. He is called Satan in the Japanese version of Actraiser, but I will use Tanzra because that is how I was introduced to him. Tanzra is the main antagonist he has legions of demons.In Actraiser 1 he is fought in some sort of different dimension. In Actraiser 2 Tanzra has far better design. He  is half frozen in a lake of ice just like Lucifer in Dante's Inferno. I give Tanzra 9 out of 10 Tentacles.

Sasha

Sasha is from the playstation game Infamous. Sasha was originally a mentalist and scientist working for a group called the First Sons. During her time with the First Sons, Sasha began to research mind control techniques and developed a spray or tar-like substance, which as an agent seduced other agents to extract info from them. At some point she became a conduit unlocking abilities of mind control by produceing the black tar from her body.She is a great antagonist but not that monsterous for this I give her 3 out of 10 Tentacles.

Daedalus

Daedalus is from the playstation game Resistance. Daedalus used to be
human named Jordan Adam Shepherd. He can fly and has the power of psychokinesis.
His voice has a great echoing effect. His tentacles are strong enough
to stab straight through a man and for this I give Daedalus 8 out of 10 Tentacles.

Defiler

Defiler is an alien monster from Starcraft. It has a couple of gruesome abilities. Dark swarm summon thousands of small insects. Plague it spits red damaging fluid. It also can even burrow and consume things for more energy. I personally think it looks like a monstrous silverfish. because of this I give Defiler 5 out of 10 Tentacles.

Astaroth

Astaroth is a monster from the Ghosts'N Goblins series of games.He is known as The devil king of the Makai. He has lived for thousands of years and is well versed in the magical arts. Has a secondary face on his abdomen which though apparently unintelligent, can attack on its own. His hide and clothing are stronger than steel. He also posseses two fire-breathing mouths. As a demon lord, Astaroth has vast lore of arcane magic.He can either burn his enemies with deadly fireballs or scorch them with his white-hot laser like breath from his second mouth. In Ultimate Ghosts'N Goblins he uses magic to fly as well. I give this monster 4 out of 10 Tentacles

Beelzebub

Beelzebub, also known by his human avatar form Baal Zebul, is a recurring demon in the Shin Megami Tensei series. A powerful and high-ranking demon, he is the right-hand man of Lucifer. Beelzebub is known as "The Lord of the Flies." Beelzebub was originally a Philistine deity and was later explained to be one of the seven princes of Hell in Christian sources. He is also considered to be synonymous with Satan. I give Beelzebub 9 out of 10 Tentacles.