Going into the final boss rooms with just the default loadout? You've got guts dude ;).
Thanks a lot for playing our game! For the remaining part, you can consider spicing things up with a bigger weapon or some magic spells (you can scroll down the buy list in the shop for more options). You can still head back to the shop on the left when you continue the boss level.
Other than that, love the playthrough! Cool how you're figuring out certain design choices (eg 16:42). And much appreciate the feedback. The more we get, the further we can take this project.