the game could use some on-screen controls on android. Better yet on-screen movement, use, and menu buttons. The strengh challenge is currently impossible (swiping left and right fast enough while also being consistent does not work) and fireballs don't always, and likely won't, activate. Otherwise the android port is superb. I just cannot progress because of nasty controls.
Edit: don't make the strength challenge a left, right QuickTime event if you add on screen controls. It would need to be spamming the "use/interact" button if anything.