For quick reference, here is a checklist of the major unlockable characters and their requirements:

Most characters in Rebirth are tied to the completion of specific story episodes. Some also require a minimum number of , which are earned by completing sub-objectives within those levels.

Once defeated, is playable – extremely powerful, infinite beam, unblockable attacks.

Complete Stage 03 ("The Target of Liquid") in Nebula Mode.

Note: The game organizes characters into base roster and unlockable roster; unlocks typically require completing specific story chapters, achieving medal/score thresholds, finishing character-specific missions, or accumulating points/currency. Below is a structured, actionable walkthrough to systematically unlock everyone.

Because advanced characters like require up to 90 Mission Points, you cannot afford to scrape by with basic completions. Follow these combat fundamentals to maximize your score in every Ultra Mode episode:

Damage taken heavily penalizes your final score. Use perfect guards and side-steps.