Love this game!
Playing on PinePhone Pro (I use Arch, btw) with Backbone One.
Using RetroAchievements with hardcode mode enabled (i.e. no save states). It's sad that it's impossible to share profile.
The last part of the level before the last boss is harder the the boss itself. Spent more lives at this part than in the entire game :)
Too bad that login is required :(