I found the idea very creative!
The realization might not be it, with the camera you don't see much, the debuff action drift isn't very though (as the control are very basic) so I kept choosing it.
some power-up (3) stasis to your decay have no animation, so it's hard to know if it works.
It would have been nice to be able to stack maximum health with a death option, I only had option for power-up I already had (dash and stop-decay, button 2 and 3.) So the whole idea kinda doesn't work if you don't keep getting stronger.
Please, keep working on your game after the GMTK, it could be a very good game!