Not sure whether the game is endless, I scored a bit more than 10000 points on my last run which was probably my best.
The game feels good to control with the right speeds of everything and catchy visual and sound feedbacks. Navigating through the bullets is just hard enough, I've no idea of how it evolves but with that sort of game I like that a lot of enemies come from the very start with no initial dead time as you're going to play again and again so this game delivers that the way I like it. I really like the drawback of the shrinking (and especially slowing) ability that the field of view is then restricted.
I'm all for auto-fire without a very good reason, and a good compromise if you want to invite the players who prefer clicking to click anyway is to make it quite slow so that you shoot faster when clicking.
Thanks for sharing!