Fun game, but there's a few problems. Here are the ones I noticed :
- If you close the window and then come back, all the Power and Critical Chance you bought are back to zero. It doesn't take too long to buy those back, still it's annoying.
- If you die while fighting a boss, there's a very long error message and you need to reload. Most of your progress is saved but I guess it shouldn't be that way.
- As Deusued said, there's a problem in full screen. It's easy to get around ; I only open the Unity WebGL Player on my browser and then I zoom out until I see the full game window. Still I'm not sure many people do that and can enjoy the game.