Do you remember what exact sequence of events lead to the bullets not colliding? Also was this the Web, Linux, or Windows version? Very unexpected bug, never ran into any similar issues during my playtesting.
Yeah my iconography ('green icons surrounding repair zone') could have been clearer.
Also the whole game could have been much more explained up front.
The area between all the green icons repairs the player's ship if they sit there long enough (1hp/sec).
Thank you for the feedback.