Hey Barmizzle, thanks for the comments!
I think Pixel Shorts replied to you on the LD site but I think you clicked on the tutorial mode that 2nd time. You can't die there, it is more of just practice mode as almost same as regular (Explanation on that). The way to get out of tutorial mode is to use a portal, which is an important mechanic but may be hard to discover on one's own (we wanted to guide the player towards that better but ran out of time).
We didn't add Scowsh, our music and sfx team mate, to the project until the last day. So he only had hours to work with. He does a great job and could have done more if he wasn't doing a different game jam on Saturday and Sunday!