This is because, the bosses in the Underworld* (The online part of the game playing in multiplayer mode with other SF-2 players in the world) are way strong with various skills and those bosses will be with various Magic* powers in single combat. But, I strictly recommend you to learn all the moves in the gameplay by playing it fairly ACT by ACT in a fair way.
But, some may favor hacked gameplay and start directly from the final stage of game like, beating Titan. Beating Titan, the final boss in storyline is a childsplay with the Monk Set in the game. Actually, Shadow Fight 2 is a really-great game and it was also an easy-to-complete storyline.
