…stuff like Donut Dodo, or the Ninja Jajamaru collections, the Tetris Grand Master collections, or Russian Subway Dogs. Stuff with a spaces that are small and hand-crafted (or even single-screen— I've been playing a lot of early-80s style single screen stuff) and a time-attack or score-attack focus.
But I've now played a LOT of those specific four games. I'm going on a trip this weekend. Can anyone recommend anything along these lines I can run on the Switch or Steam Deck?
Lotion Samurai, a time-attack game starring a mutated Oda Nobunaga who's constantly secreting lube and must escape captivity by kicking off walls and sliding across the floor at high speeds. Just getting the clear is pretty easy, and the stages are so short and fast-paced that even the more troublesome levels are not going to trip you up for too long, but there's a ton of room to optimise far beyond the default high-rank times and there are online leaderboards, so it's a very easy game to pick up and blow through from start to end whenever the mood suits you.
The Switch version's an all-in-one/director's-cut containing all the content from the original PC version and the sequel, Shin Lotion Samurai, plus some little extras/revisions; I do like the PC version's mouse aiming and I'd like to think it'd map well to trackpad, so lemme know if you try it out on Steam Deck.