I wonder if the Zenryoku Zenkai Cannon can summon more than one theme such that rangers from different themes can fight alongside each other.

I feel like that'd require an extra piece unless we're using the minipla models. I can see it fighting alongside Super TwoKaiOh. Super Zenkaiser growing in size just to hand over the Tenlance is a requirement for that, but that hasn't stopped Zenkaiger before.

CGI mecha fight can be a new Generation.

Likely, the reason why Zenryoku ZenkaiOh is only a CGI model is that otherwise, if you were to compare Zenryoku ZenkaiOh to standard ZenkaiOh, it would be HUGE. It literally has half of ZenkaiOh VrooMagine as its feet and Half of ZenkaiOh JuraGaon as its arms. If they were to make it not CGI, it would be too big. Effectively, the only problem is its size relative to everything else.

yeah like they did the Zords in Mighty Morphin Power Rangers the Movie

I decided to make some custom team-ups with the Zenryoku Zenkai Cannon and a little creative liberty.

Secret Power:
Lupin Red x Aoranger x Big One x Gokai Green x Yellowbuster

Jurassic Power:
Ryusoul Red x Abare Blue x Kyoryu Black x Ptera Ranger x Dragon Ranger

Beast Power:
Vul Eagle (Hiba) x Yellow Lion x Black Condor x Ginga Pink x Zyuoh Shark x Gao Silver

Miracle Power:
Wolzard Fire x Goggle Black x Oh Blue x Gosei Yellow x Wagon

Machine Power:
Red Racer x Blue Turbo x Go-On Black x Kirama Green x Bouken Silver

Fighting Power:
Geki Red x Rio x Miss America (Maria) x Blue Mask x Shishi Ranger

Science Power:
Red One x Pink Five x Denji Green x Dyna Blue x Time Yellow

Chanbara Power:
Shinken Red (Kaoru) x Ninja White x Hurricane Blue x Momoninjer x Starninjer

Galaxy Power:
Mega Red x Mega Silver x Change Griffon x Green Flash x Yellow Flash x Five Pink x Libra Gold x Draco Commander x Ursa Sky Blue

Patrol Power:
Patren 1 x Go Green x Go Yellow x Deka Pink x Deka Break

FOOD POWER
Kirenger x Denzi Blue x Black Condor x Mega Red x Go Yellow x Bouken Siver x Geki Chopper x Stag Buster

Kirenger loves curry rice
Denzi Blue loves anpan
Black Condor loves alcohol
Mega Red loves Korean barbecue
Go Yellow loves milk
Bouken Silver loves raw vegetables
Geki Chopper loves minced cutlets
Stag Buster loves enetron

There's also Yellow Owl (ramen), Ryu Ranger (gyoza), Ninja Yellow (hamburger), Gao Black (chanko), Geki Red (pork cube stew), Go-On Blue (omelette), Gokai Red (whatever), Yellowbuster (candy), Kyoryu Green (cream soda), Brave Kyoryu Green (lollipop), Akaninjer (oden).... I think that's it?

Well, one thing for sure, Food Power FTW. :lolol

hehe yeah.