Thank you for playing!
The gameplay systems were upgraded in terms of interface(HD resolution mainly) and mechanical improvements in the one month time period. I also drew the character art, made the battlers, and the menu interfaces in that time. Along with actually putting the game together, of course. I followed a strict schedule every week to get it all done.
The story being rather inconsequential is sadly true. I'm lacking an intro and greater context due to time constraints. But I hope to clear that up in the future.
As for the battles, yes, EX Recover is the only skill that can heal substantially beyond defending. The key is to manage your EX gain and choose to heal and attack as the situation calls for. Also, Link Attacks give the attacking partner a boost of EX, so that also helps as well.
It's my plan to have the tutorials be reference-able about after the section you would have finished, so I hope that helps in the future.
Either way, I appreciate the time taken to offer this feedback, I'll keep it in mind for further down the line!