|This article is about a/an video game in the Super Sentai series.|
As a bonus, existing players who updated this app game and new players who downloaded this game will be given ToQ 6gou as your first character once the game is launched on September 10, 2014.
Bandai Namco Games had shut down service for the game on February 8, 2016. 
This gameplay allows a user to make four teams, from Goranger to the preceeding Sentai teams and the fifth team is the friend's team to make it a total of 25 Sentai characters (Sentai warriors and their upgraded forms, allies, villains and monsters alike). There are types of ranks depending on the level cap of the character: N (only until level 20), R (only until level 30), R+ (only until level 40), HR (only until level 60), HR+ (only until level 70), SR (level 80 to 90), SR+ (level 100+), SSR (level 120+) and SSR+ (the highest rank, level 130+). Only the ranks SR, SR+ SSR and SSR+ can reach into exceeding high level when using Level-Up boosts.
By filling up the power bar of each team, it will perform a combo attack on the enemies and bosses. When having 6th Warriors, Extra Heroes, and other characters, it will perform a DX combo attack.
The Giant Robo battle only appears in normal missions. There are special event missions to unlock new Sentai characters, but Giant Robo battle is not included there.
The game closed down on 8 February 2016.
Here is the gallery of the gameplay of Super Sentai Battle Base DX. Translations with descriptions are provided and edited by one of the players of Battle Base DX.
Here are the download links for both iOS and Android for free:
Though this said game app (both versions) are only downloadable for Japan and cannot be downloadable for other countries, you may create a new account for Japanese store.