Seraphonin

Seraphonin is a precision platformer in which you play as a nameless seraph: a fragile ball of bundled wings that cannot yet fly. You throw yourself through treacherous caverns in search of your long-lost lord, while an omnipotent malignant force prevents you from finding eternal rest.

Traversing the caverns

You use double jumps and wall jumps to navigate hazards including spikes and bullets. The game has 60 levels split across three eras, along with two monstrous boss encounters and an achievement list described as mildly masochistic.