The monster is one of the several bosses you find the game, he's called Graham
https://i.imgur.com/tk0L0V6m.png

And the grunts I think they're based on the Mandragora, which is a lower Earth-element monster.
https://i.imgur.com/GCXFhGhm.png

Wow this is amazing to see Kyoryuger was one of my favorite Sentai that I love so much. To see the cast get another ep many years later made me very happy. I enjoy seeing them again and this ep was really cool and exciting.

I would love for Toei to do another special for Kyoryuger be it a movie or another season.

Kyoryuger is the one Sentai that has proven just how popular it is and it got a second season in South Korea and a new ep in between now that BRAVE.

I really, really hope this gets subbed by SOMEONE and soon! =D

Tv-Nihon has said they're going to sub it. Not sure when, though.