This is great! It's a really solid game for a 1-week jam, and I'm really impressed with all the things you were able to add in that time frame. I don't have many particular criticisms, only that maybe the music is a little too upbeat? It's a good track, but it might be nice to change it to something a bit more adventurous-sounding, considering the various gruesome ways your player can die. Despite this, the music tracks are very well-made, as are the sound effects.
There's a ton of gamedev stuff I want to praise here, but it'd take a long time to explain everything. In short:
- Online leaderboards
- Art
- Pretty much no bugs
- The UI
- The WebGL compatibility
As a gamedev, I've had problems with all of those points. Your ability to get them done in a week is amazing. I commend you for that.
Overall, great game!