Hello there, Thanks for playing our game!
"I'd love some feedback on that if you've got some time!" sure!
"maybe you could use playerprefs to store whether or not the user has finished the tutorial?" This will likely be a thing in the post dev version
"You also really need some hit effects on the enemies - a white flash will do :P but it didn't feel like I was doing any damage to anything!" we were low on time so couldn't really add effects but it'll likely be added to the post jam build
"and maybe a couple of different bullet shapes and/or would go a long way too" This was originally indended but got cut out due to collision size problems unfortunately
"you should definitely be pleased with what you've done :)" Thank you!