MMD Flash Fusion Time

To celebrate both Digimon's 15 anniversary and The new dbz film
Also why didn't they ever fuse in the show just why?

Also that's human Shoutmon (kingmode) and Gumdramon
I MEAN COME ON WHY?!!!
Also I used the human versions mostly because I wanted to test their new models and it was easier.
as for the fusion it's another Omegashoutmon edit using parts from Arresterdramon.
Models
ArresterShoutmon edit by me original by
Human tda Shoutmon and Gumdramon by me

Also thinking of something for Belphemon T_T I need ideas