Me when getting to the last level: "wait I can choose what the guys do" xd
Reminds me a bit of old Fire Emblem, I like.
UX/UI can use some work though, as people mentioned a proper tutorial, volume & control settings, and "who am I vs who is the enemy" + and don't make people go through the credits & intro every level would be a few huge points to tackle.
Besides that, the music is great and you did a nice job with the art too. <3