I played the original Murloc RPG 1 and I did enjoy it, I really did. This, I assume, would be just as enjoyable as the first one. Why 'would be', not 'is'? The reason is simple: it's completely unplayable at the moment because of crashes. After about 10 minutes of playing the game crashes, and because of no autosave feature, every 10 minutes I'm losing half of my progress (because it's too much clicking for me to save manually and, well, I always forget to do it). It's frustrating. Extremely frustrating. I'll abstain from rating the game for now, until the bugs are fixed and autosave feature is added. When it's made, I'm gonna rate it 5/5 right away. Good job overall, just needs the necessary polishing.
The game definitely needs some kind of an upgrade system. What I love in shooters of that kind is when the game lets me customize my ship the way I want. IMO the scraps from defated enemies shouldn't refill health bar. It's just so hard to die in this game that it brings almost no challenge for the player, thus making it boring. 4/5.