It is A/D to move through the options and x to start the game. Sorry about that.
Ahah, thank you! The resolution looks good now too!
It's a cool ability system, but I was not able to get past the spinning blade no matter which ability I was using (I'm really not great at skill-intensive platformers, though).
My recommendation is to have jump bound to a separate key from the ability activation key, and maybe to slow or freeze time while trying to activate the QTE.
Good work!