So yeah, as mentioned in the post, I'm currently playing Astro Bot and absolutely loving it.
The gameplay is fun and varied and everything is so playful and full of joy. The music is super wholesome and I love how tactile everything feels.
I'm going through a bit of a harder period mentally and I find that this game can bring moments of wonder and surprise like few others can.
I had a similar experience with Astro's Playroom and Super Mario 3D World. Sometimes a simple, colorful world with happy music and fun mechanics is all you need!
I edited the post to just platformers, as it was indeed a bit vague! Though I think I was going more for the run-around, collect and jump on enemies kind of deal (Mario, Donkey Kong, Crash Bandicoot, Astro Bot, Banjo-Kazooie, etc).
So less action-platform I guess?
But what do you like about megaman? I've never played any game in that series!