Update: Unlock system

Settled on a Grind-To-Unlock system in order to allow access to multiple characters.

On a whim, I decieded Aura ( The white dragon you see on the game's thumbnail) is your starter.

Each rank of an enemy you fight grants XP on their defeat. This XP is directly proportionate to their Rank. After certain XP thresholds per character, you unlock their higher rank, made selectable. You will need a minimum of 1 XP per character to be able to play them.

Comparitively minor bonus addition, you may now choose to continue a given run, or scrap it and start anew. (Not sure why you would, but it felt right to do at the time).