What you have here is very well made. The control feels good, the laser feels awesome, and having a dog companion to help collect gems is very nice. The only real problem is that there's not much to do, collecting the gems is not very compelling when I'm carrying around a nice-feeling weapon and my trigger finger is starting to itch.
The physics on blasting around the snails is nice, and its interesting that the gems can be destroyed as well.
This could be something very awesome when finished.