Interesting creativity with the "Vexace" and "Emvee" stuff :D I'm also quite familiar with the node traveling style you presented because I've played RPG Maker games recently that uses it. So it was interesting and quite exciting(?) to expect a game jam that's possibly going to be fun like this. :D
Reading the comments below mine though, apparently there are different combo combinations? I keep thinking the combo input keys must be exactly in the same order as displayed on the screen, and it was the same for every character and thus battle felt quite repetitive in some form throughout the game. Like, use combo and then heal or buff (or vice versa), and then repeatedly doing the same thing. So, unless if I'm missing something, I did think that it was relieving I did my playthrough in the easier mode. The F.O.E. one turns out to be too difficult, and maybe that was the intention, but it seems unbeatable. Noticed that the difficulty increases if I have Canary in my party; initially thought it would be easier once I get Canary but it was way harder with a three-people party.
Overall, it's an interesting experience. I probably wouldn't be honest if I say I enjoyed it due to the repetitive battle actions for me and the "Relief I didn't play this in Normal mode," but then it could be I'm missing something, possible wasn't sleeping well when I played, etc. So if there are things I'm supposed to have known or should have done and you want me to redo, feel free to let me know.