Beautiful! The last level almost stumped me – it would be better to introduce the fire things earlier, in a place where it won’t kill you immediately.
There’s a bug too, I’m not sure if it’s your bug or GameMaker’s, but gamepad axes are centering on 0.5 instead of 0.0. Web Gamepad API, they’re always normalized to -1..1, so if one uses a gamepad here, mouse will walk left when the stick is idle.
(or you could sidestep that problem by using the dpad – buttons 12..15 – instead of axis[0]. See https://www.w3.org/TR/gamepad/#remapping )