What are some alternatives?
SuperTux - SuperTux is a classic 2D jump'n run sidescroller game in a style similar to the original Super...
Super Mario Run - The mobile Mario game you can play with one hand!
Super Meat Boy - Let's start with what's the same: Dr. Fetus is still a jerk, gameplay is super challenging but fair, there are tight controls and great levels and you will die. a lot.
Hollow Knight - Descend into the Dark Venture down into a beautiful, ruined world of insects and heroes
Toki Tori - The gameplay in Toki Tori is a blend of two genres.
Braid - Resource planning & scheduling for professional services