is this still under development?

Hey ! Sounds good ! Hope the controls will be smooth as it seems like to be :D Keep enjoying ! NB : Music, pixel art & animations looks clean af

i need it like i need air to breathe

1. Is there any promotional content? (I.E. Anything only available for a limited time or more complicated than just buying DLC) 2. Is there anything permanently missable, even rewards for fulfilling specific conditions? 3. Is this game identical on all platforms, including an in-game achievement system for platforms that don't have the infrastructure for it? What platforms will it release on? 4. Are there any bonuses for having save data from a different video game? 5. What might this game's age rating be?...