Hi
What are you go to games when you just want to chill, without worrying about learning controls, or figuring out any systems.
For me there's two:
Sonic 2. Know it inside out. Simple controls, I know I'll complete it, and the levels just fly by. Metropolis Zone sucks still.
Streets of Rage 2. On normal or hard. Haven't tried Mania that would probably be more stressful. Again I can cruise through and it's always a blast. Great tunes too!