Because you like Yoshi in Super Mario Bros.

Yugi Moto is a gentle soul whose determination and talent make him a formidable opponent. See them in Yu-Gi-Oh! .

Optimus Prime is a shapeshifting sentient robot leading a team of robots to stop evil from taking over. See them in Transformers.

It turns out Dracula's son Alucard has some pretty severe daddy issues. See them in Castlevania.

Big Boss is a disillusioned mercenary commander who wants to create a world for soldiers (and soldiers alone). See them in Metal Gear Series.

Edward Kenway can be reckless and greedy, but he's learning that his ancient ancestry carries a noble burden. See them in Assassin's Creed Series.

How lucky are we that Arthur Curry, the King of Atlantis, hasn't taken over the surface world? Very! See them in DC Extended Universe.

Driven and straightforward with high-technology parts, EVE was sent to Earth to see if it is habitable. See them in WALL-E.

Tarzan is walking the line between human and animal. Good thing he has excellent balance. See them in Tarzan.

A resourceful ship systems engineer, Isaac Clarke does his best to batttle the infection spreading across space. See them in Dead Space.

A Haddock always has a trick up his sleeve! Tintin is lucky to have Captain Haddock as a companion to search for hidden treasure on an adventure around the world. See them in The Adventures of Tintin.

After being resurrected and discovering his new morphing abilities, Alex Mercer uses them to combat the virus now ravaging New York. See them in Prototype Series.

Always headed towards adventure, Goku is frequently with a band of loyal companions at his side. See them in Dragon Ball.