A few things: It seems odd to advance when you fail a level, and the upgrades are only available after failing when it could be nice to have them at all times. There also doesn't seem to be a way to go to level select when upgrades aren't available.
Hi, thanks for the feedback! Yeah I agree. I just uploaded a new build that should fix most of the issues you mentioned: the button to go back to menu is always available at top-left, and you won’t be able to progress to the next levels unless you clear the current one fully (i don’t know what i was thinking 2 years ago when implementing it so you can skip levels like that 😂)