Ver 1.4. out, at last!
So yeah, this version is pretty much the definitive one. It contains the following additions/corrections:
I finished the game recently and I must say that I liked it a lot, short but very funny, at the end only Caesar and Etzel survived apart from Malice and Dice, Caesar survived by luck and Etzel was just a badass.
I also let Caesar kill the last enemy just for flex
Glad you liked, and sad that it was such a slaughter 
You know who would love a slaughter. Malice and Dice 
Enjoyable hack, with clear flaws.
A few clear issues are it’s bugs; various soft-locking points with the single use keys and graphical issues on it’s opening screen.
There’s also various spelling mistakes, a few odd character choices such as Pete Jay, and dialect choices which don’t match the style of the characters or franchise as a whole.
Sprites, animations and inserts all felt appropriate and well made, there was the odd issue with one brigand bosses arm being missing, but besides that. They match the GBA art style and are lovely to play with.
The map designs are where this mod shines. They are simple, elegant and well made.
The idea of temporary units works for the kind of hack that this is trying to be. However, as mentioned before, soft-locking issues may occur when your one key is completely gone when a unit dies and there is no work around whatsoever.
The temporary units also have no real reason to play with when Dice and Malice are the only ones who carry any experience over between chapters except for the final one. An idea would be to implement all the units we’ve used so far in the final chapter, so any experience they obtained would actually matter.
Dice and Malice could easily solo the entire game, the hard difficulty was not as difficult as I assumed it would be with only two playable units. They hit their level caps around job 5 or so and the Juna Fruit item doesn’t do much to counter this, although with their growth rates they’ll easily be able to complete this hack.
Overall, very enjoyable experience. However the dialogue, spelling mistakes and simple combat hold it back quite a bit.
Thanks for playing the hack!
If you don’t mind, could you tell me what felt odd about Pete Jay or the dialogue? I’m curious about it.
Also, if you could tell me where the spelling mistakes are, that would be very helpful for futures updates.
About the softlocking, well… I could work out with it, maybe adding more dropable keys in those scenarios(?, with the temporary units, tho, it doesn’t make much sense for the Coyote brigade to be at Port Warren, but maybe I can work Ogma into it.
Sure thing, send me a dm and I’d be happy to replay it all and go over the all spelling mistakes etc.
Definitely don’t feel discouraged by my criticisms, it was amazing you were even able to make a hack in the first place.
Pete Jay just doesn’t really seem like a name which would fit in the fire emblem world as a whole, there are certain ways characters talk and act which differ. Artistic changes are valid but some things end up being jarring for the player. A more fire emblem-esque name could be Petr or Petah. It’s a small thing but a lot of small things can dampen an experience overall.