Hi,
if you miss some of the old-school tough unforgiving games from the 8 bits era (the well named Game Over 1 & 2, Gryzor, Army Moves or worth Navy Moves, Nebulus, MagMax, and many others like that) you may like Hop 2D by Asthalis.
It's a well done challenging platformer game nicely done and easy to play (only 2 keys) and available on multiple systems with modern features like saving.
If you can keep cool while playing and failing over and over, you'll be able to cope with any stressful situation you may encounter in your life without loosing yourself :).
Are you ready ?