Nice piece of game! Any chance you could write a couple blog posts about the technical challenges you had to face, if any? I'm especially interested in the way you generate levels. Thanks.

The shop doesn't work on a monitor (or browser window) with height > width. It appears when I resize the browser window. Otherwise the game works quite well on a rotated screen. Independent from screen rotation, some textures are badly compressed. Such as the pattern on the vase.

What's a good way to get started developing similar apps? Do you recommend coding from scratch right in WebGL, or do you recommend starting with some framework or another? Do you have any thoughts on using Unity or Unreal Engine for WebGL deployments?

Very well done and polished, had some fun !

Small bug I've found : If you stand in a 'cell' with 3 walls and the only exit is occupied by an enemy, you can't rotate to hit and get killed eventually.

A drawing explains it better http://pastebin.com/6uZS67VJ

Is there anyway to change the keyboard setting? I accidentally selected the wrong one, and had to relaunch the game in an incognito tab to be given the chance to re-select the right one.

Kudos to getting it to run very well on mobile and for having the thoughtfulness to put in touch screen controls.

Any plans on adding gamepad support? (It looks like Chrome for Android has it now.)