Amazing production! I'll just list what I dislike to help devs further improve this gorgeous game:

• bad ladder controls: diagonal-up/down behave very strange close to the ladder. DIAG-DOWN moves player suddenly at the bottom of ladder, ugly to see. DIAG-UP while climbing the ladder breaks vertical movement and will face player in the selected direction, but this doesn't happen when pressing DIAG-DOWN while on the ladder (?). Confusing. My suggestion: disable diag-up/down strange player movements and keep it simple: UP/DOWN only and LEFT/RIGHT, no diagonal strange things.
• remove the jump-on-the-ladder controls simplification as this can cause issues while shooting at flying enemies: let the player use the ladder only when moving UP/DOWN right on the ladder spot, or at least if you really want to jump on then you should keep also UP pressed to grab the ladder.
• Game Over player's tomb should be in the middle of the screen.

Ciao! E complimenti ancora per l'incredibile lavoro! :)