>>713968268
Little Walker (25 reviews)

https://store.steampowered.com/app/448500/Little_Walker/

Well-designed though very indie (so slightly janky) platformer played with a single button. Turning around happens either via walljumps or by bumping into ghosts (which function similarly to Blockers in Lemmings). Love this game and played it start to finish multiple times, sad to see it have so few reviews. (Ignore the option for traditional controls, the dev added it after people whined about it being difficult, earlier versions had jump as only input.)