Just finished, I thought this was brilliant :)
I enjoyed the light hearted humour from some of the dialogue, and I thought the gameplay was a good balance between chaotic and fun. I defeated the last boss with just the wizard barely alive. It's kind of like whack-a-mole but with healing.
And Ferris made an appearance! It's cool that you made this game in rust. We were considering possibly doing the same, but settled for Butano instead. How did you find developing for gba with rust?