Wow, thanks for the kind words! :) Your suggestions are very good, and in line with some other feedback we've got on the subject, these are definitely things we'll need to tweak in the future! For this version we went with the kinda style Cuphead has, contact with basically everything should be avoided :D but that means that player's weapons should be more distinct from enemies and other objects, and if we choose to continue with that style the weapons should have maybe some kind of glowing effect (like in Cuphead they are somewhat transparent and have bright colors). One other idea could be giving hurtful objects a clear outline with a bright color (making sure that doing so doesn't mess up the visual style too much). And of course the game also has Enter the Gungeon style bullets that should be avoided, so the subject clearly needs some clarification!
Feel free to comment on the subject if these thoughts resonated with you! All feedback is super useful for us! :)
Cheers!