I love Dead Cells as a game (slick combat, great graphics and atmosphere, etc.), but it's levels are one of the weak design points IMHO. They are nowhere near as fun and interesting as Spelunky's. Dead Cells levels are just simple tree-like structure that branch out and have a bunch of random rooms placed alongside the branch. It even has errors where you get two checkpoints so close, they can fit on one screen. The only exception is level 5 where you have teleport doors that add some interconnections, but the rest of the game levels are meh. You start going down a side path and you know it's a dead-end every single time.