Here's an Osamu Sato game that i have somehow never heard. It's odd considering there's been dozens of write-ups on the guy and he's revered as this spiritual mystery man of Japanese gaming, so you'd think all of his games would be common knowledge by now but I guess not. The game seems pretty cool, a lot less abstract than LSD but still pretty funky. I like how it handles exploration having layers upon layers of 2.5D planes stacked against each other.
https://www.youtube.com/watch?v=Pk2AEnYMFXk&index=55&list=PL0ydLeodzjB1ebAtQknQnVPMdsMIM_UlShttps://www.youtube.com/watch?v=Pk2AEnYMFXk&index=55&list=PL0ydLeodzjB1ebAtQknQnVPMdsMIM_UlS