The game crashes right after the title screen. It sounds interesting though, I'll make sure to leave a review when you've uploaded a functioning version of your game! Just shoot me a message when it's working!
EDIT: The game works fine with the link you provided, thank you. The game itself is nice, I enjoy the graphic and the responsiveness of the controls. However I wish the sword attack wouldn't have such a huge starting lag. An ending lag would be perfectly fine and reasonable, but attacking with the sword feels counter intuitive. Like you have to attack before the enemy is even in reach. Very difficult timing, I'd reconsider the attack lag.
Also there are some small bugs with the spikes in the ground and the chests on them. I think it's the first lava/volcano level. You can actually make a huge jump on the chest in the middle of the spikes, which should obviously be safe. But that jump is impossible. Even if you land pixel perfect on the chest, you still die by spikes.
Other than that I really enjoyed the game!