I love the simplicity and I'm a fan of dim lighting as opposed to no lighting in 'hidden' areas. There's a few parts where the character would stick in walls. Great job!

Edit: 20 minutes later, fuck, just, fuck

I like how the game felt, although, it was kinda hard to see the traps when i fell of taller cliffs, but i'd be ok with that if there was an automatic restart kind of thing when you died. overall a pretty good game!

Cool artstyle and light mechanic! You could improve the feel of the jump by setting a higher gravity after reaching the zenith of the jump so that the character comes down faster (without affecting the jump height). Here is a very good GDC talk on this topic. Keep up the cool work!