It definitely has that classic JRPG look-and-feel (and sound). I love that your team is liquid and plasma, it's so creative! Using the States of Matter as the four types is a lot of fun and really shakes it up versus the way-overdone Four Elements. The sprites are very cute, and the environments are quite detailed and nice-looking and you created a lot of maps for a short jam.
The way the combat engine works is solid, but the balance seemed off--Guard and First Aid never seemed useful and there seemed to be too much Mana and too few Technique points. For instance, in the lab experiment fight, Liquid deals 0 damage, Plasma can deal damage but has very low health, and Liquid can't guard or heal Plasma, so I don't see how that's winnable. (The flower squad seemed much better-balanced than the liquid/plasma team.)
But balance is always something you can tweak! The base game is solid and that's the most important thing.