Hey thanks for the constructive feedback, much appreciated! These are some pointers that we didn't get before!
We tried implementing the minimap to help with where the enemies were coming from, but the arrow sounds like a better idea for the future.
As for the main menu, we tried to get you to scroll to the "Start" button, so to say.
We definitely want to continue working on it, so every point counts! Glad that you liked it!