Alien Striker

I like it, but it's a bit grindy... I think that some coins should be awarded after finish a stage.

I know your description says "hardcore shooter fans" but it would still be a good idea to add a difficulty setting, Normal and Hardcore would suffice. As it is now, I died on level 1 like 3 times from the start. Your starting weapon is so slow and weak that I had to 'avoid' enemies in order to finish the round. The casual player would probably have to grind the start levels so many times to afford upgrades to make the game less frustrating. Another thing I find is the hitbox, your guy's head is just a bullseye board on top of the ship. Lastly, a lot of the dialogue needs polishing. They need to be longer or click-to-advance/remove.

Cool boss stage. someway it's unique than other usual bosses in shump games.

Agree with musared, autofire is a must-have. But, well, in the meantime, the usual do-it-yourself autofire method works : keep LMB pressed, click RMB, you're done. Another feature that's kind of missing is a minimap/progress indicator so that the user can know how far he is from the end of a a level. Last, being able to zoom out would be nice because as yet we cannot see all enemies.

Pausing the game doesn't actually pause the game. You will still get hurt. At least during the boss fight I did. It also made him launch every missile in one group.