It took me a while to understand what's going on (including the health link - finally I understood what was killing me - it was me!), and even longer to somewhat master this game play (which is a good thing actually). So maybe the onboarding and user feedback (what's killing me?) can be improved, but I think it's very original, and there's a lot of game play depth and potential here, especially in Stage 4 where you can choose who to link with!
(By the way, if you want your screen shots to show up on your game page, click 'edit theme' while viewing the game page, and then choose 'two column format'.)