Yes there are a few little spots like that I tried to put in, a few other levels have similar things which are fun to find out! I'll hopefully get time to add more levels and explore the actual level design aspect in more detail as in all honesty they were rushed with the jam being 2 weeks and half of that spent getting the shooting mechanics to work right.
I've had similar feedback regarding the fullscreen clicking so I'll definitely look to rectify that. The game was sort of created with mobile in mind and I think it would be less of an issue there, but still I'll try and find the time to make that more obvious.
12 is a great score! Some levels you have to get a bit lucky in the current prototype to get hole in 1 and 2s so I'd maybe look to change that one day, perhaps with longer levels so lucky bounces and quick restarting is less incentivised. Thanks for playing! :)