What are some alternatives?
When comparing Downwell and Super Meat Boy, you can also consider the following products
Super Phantom Cat - Retro-inspired 2D homage to 8 and 16 bit platform games.
Braid - Resource planning & scheduling for professional services
Minilens - Libre puzzle platformer for gravity-oblivious aliens
Hollow Knight - Descend into the Dark Venture down into a beautiful, ruined world of insects and heroes
Agent Dash - Your mission, if you choose to accept it, is to destroy as many villainous bases as you can!
Limbo - “Dark, disturbing, yet eerily beautiful, Limbo is a world that deserves to be explored.” Joystiq. “Limbo is as close to perfect at what it does as a game can get.” Destructoid. Buy LIMBO: Special Edition.