In addition to the Gundam and Masked Riders that travel with you, Lost Heroes 2 has allies you can call in battle. Sub-characters give you entire party boosts like reducing damage for five turns when you call Ultraman Hikari. Ankh increases your physical attack power for four turns and Fiat from from Turn A Gundam boosts your wind attribute attacks for five turns.
These are the sub-characters confirmed for Lost Heroes 2.
Kamen Rider Beast
Kamen Rider Mage
Kamen Rider Meteor
Kamen Rider Nadeshiko
The Nintendo 3DS dungeon crawler comes out on February 5 in Japan.