The idea is pretty cool, but - as others said - it needs some more work. Maybe more different levels, upgrades (new weapons?), more powerups and enemies. For the lag: I just changed the quality to low, and it worked fine.
I liked the first one, but this is is extremely annoying IMO. Too many levels are all about
pixel-hunting.. The game is not challenging, it's simply annoying.. 3/5
Congratulations on your first game DBlay!
Try adding more types of enemies and powerups, and try improving the graphics.
Looking forward for your next game. :)
Not loading for me, I had to right click and "Forward" to start the game. Fix this and the bugs in the game (ship is upside down, but it's going upwards ) and it will be an OK game.