A unique yet simple idea really turned into a fun and refreshing JRPG-esque experience, however lacking visually, it certainly adds to the simplistic charm of the game.
Interestingly, I actually did something similar with my own game, and discussed the topic here. However, I feel this game doesn't use its concept well at all. As performance art, it's amusing, but it's pretty much unplayable in practice, not least because having to maintain 99 party members simultaneously makes it run like molasses. Far too many of the characters are virtually identical, and there are far too many in general to meaningfully memorize and juggle their unique abilities. Points for effort, but this would have worked a lot better and still managed to get the joke across with about a third of the characters.