Very cute game!
Good visual feedback with animated text and stuff. Nice music, BUT! I'd have loved to be able to turn it down a bit with a volume controller. Also, when playing not fullscreen, the shop was very large and kept popping up all the time. I would have preferred if it stayed minimized and I could save up to my companion clouds in peace :)
Not sure if they actually can take over, making it into an idle game? They had maybe not enough "killer instinct" :D
One detail I noticed: you might want to adjust hotspot of the cursor next time. There's an option in the project settings, or it can also be set from code.
Welcome to the godot world, by the way. Very good job with this entry, learning a new engine and all!