Not really a fan of the rogue and metroidmania genre, thus i only focus on points i'd think would benefit this game from the players side:
- Enemies indicator on screen border
- Sfx near enemies
- darker background for a more popping experience, maybe add a glow to all interactible game objects
Still good execution of the core game (and unique idea, the rumba theme reminds me of the rombas mods of william osman on youtube) in just very lttile time, appreciate the efforts ;)