What Are Hearts?

This is a game for the first GMTK Jam.

The theme is dual purpose mechanics, so I have made a game where the hearts represents more than just health.

Sadly, I haven't been able to work on this for the entire weekend, so it's likely that it won't be finished, but the first 4 levels are ready, so there you go :)

VERY IMPORTANT NOTES: Play in full screen mod. 

I am aware of the major issues with level 2. Whilst it is possible to complete, there is a bug which stops you from completing the level if you pick up one the three last keys in  the wrong order. There is a level select feature in place, if you  have any issues., you can skip to level 3 and 4 (they are much easier and use other mechanics) :)

(Use ASDW for movement and ARROW KEYS for shooting (when possible) )

Hold still to heal you'll need certain values of health for some doors

Red numbered doors are dependent on health 

Yellow numbered door require keys