they dont use a special introduction mainly because they were trying to keep you sucked into the character of nero and kirie so instead of making more cutscenes then needed for dante they just added what they really needed so an introduction to his DT would have been cool but would've drawn the player to far away from the characters nero and kirie its a way not to drift off from the main story because imagine the people that have never played the game before would be confused if they introduced in a cutscene then they'd be even more confused of how he got a devil trigger which is why they just stated him as being part demon as not raise questions(note: DMC1 and DMC3 have different ways of showing the origin of his DT or true demon being awakened)and id have to say (off topic of either DMC1,3,4)DMC2 was a complete and utter failure it was mainly there to keep fans busy and they noticed that and tried to continue the story by making DMC3 which was a prequel which id say has the greatest gameplay out of all titles in order to understand the gameplay for both you need to take in account the users ability to customize the character with certain limitations as not to mess around to much with the user in DMC3 you only hold 2 devil arms and 2 guns and used one style which had such a great mechanic because they could focus more on just those 4 weapons and 1 style unlike dmc4 which had 5 styles, 3 guns and 4 devil arms going at a time not counting yamato which would lower the amount of things you can do with each because you were able to switch between each so having that many things do already you take into account limitations of control of the character thus you reach your limitations i still think it was a great idea but they need to work on the kinks in that kind of system in my opinion dmc3 had the best set up of a gameplay because your limit of holding items gave you almost limit less possibility of the usage of your character and yes i play all styles of dante so i know how to not get hit with royal guard without using it while getting an SSS combo(i love the series ^-^)it's not bragging its an example nero was a good addition to the story but hes ability for playing is too easy which kind of makes people think the gameplay is better when actually its just user friendly big difference between complex if you understand the gameplay of DMC3 you will find it a lot better you do not truly understand it till you hold a SSS for about a min with nevan,cerebrus,artimus,ebony&ivory in gunslinger