Thanks for playing and the feedback!
About the combo, I rushed the “tutorial” before the boss, which is only text, so thanks for letting me know that it isn't clear how to make a combo.
And about the jumping animation, yeah, it can be rough at first, I thought about changing it but the time was running out so I left it as that, probably if I do an update I will change the whole jump.
Happy to know you liked the story and the art :)