Thanks for your review and time Charlie, I'm glad we attributed correctly.
These definitely could have been picked up through testing, and in future I'll be sure to allocate time to test, is the duration of recommended testing roughly 10% of the time that would otherwise have been spent on the game, or is 4 - 5 hours roughly how much you would allocate to spend on any game?
To add to your comment I would also like to smooth out the character animations and add more animations to each of the sprites altogether. As well as a few changes to the enemy logic (shoot when they see you, bullets don't go through walls/floors etc.).
A comment I noticed which could also help the enjoyability of the game, especially a game that could be difficult would be the ability to restart faster/easier.