I’ve spent more time in this game than most. I have only played the version of the game against the computer, but I don’t recall experiencing any bugs. I love this game. It makes me angry and frustrated (relatively speaking), but so satisfying when I beat a level - especially the further I get into the game - to me, that defines a great game. There are ads, but I don’t feel there are any more than other free games - AND the ads seem shorter than what I experience on other games. So I’ll take it. I love the genuine arcade feel of the game. I love that you can try out the ships in mini test drive games. That’s awesome. I love that you can eventually earn or get enough points to use a better ship - so as long as you’re patient, there’s no need to purchase anything. I thank the developers for being thoughtful about both the freebie experience and the benefits of purchasing. The more powerful ships are amazing, but you must have patience and a keen eye. With the default ship and its green torpedoes, it’s easy to see most of the enemy orange torpedoes coming at you. But be careful when you earn the more powerful ships - it can be really difficult to see what’s coming at you. Sometimes the default ship and a little patience go a long way, especially as the levels become more difficult. Kudos to the developers for creating an arcade game built with the mobile experience in mind. A lot of games don’t feel natural as touch experiences. This game definitely does. Great work! Old-School throwback masterpiece I’ve been playing for a few hours and haven’t had to buy anything to get past levels (tho admittedly it often takes many tries). From what I’ve seen so far that i don’t really like is how expensive it is to buy-in just a little. I’m one of those people that believes: if I enjoy a freemium game for two hours or more, I buy in at between $1 and at most $5. I understand that this is how this model sustains itself and I’m happy to pitch in when it’s a game that’s kept my interest for a few days and a couple hours. But I feel strongly that these types of games should offer really good, low priced, one-off $1 & $5 kits. If you want to buy more after that, then they can charge whatever cause that’s where I stop. This gaming-business model seems to be asking a lot for what seems like a return with maybe one or two things that are a level up. Just my 2 cents. But the game itself is fun and challenging tho not impossible Last update has made impossible to play on my iPhone X Update on my below listed issue. They have since fixed the glitch and have since had no more problems. So I will be printing this game from a 4 to a 5 star. Enjoy guys ! Guys it’s fun game with the normal pop ups to drive you nuts but that’s the price you pay for a free game. I’ve spent a little money on this game the crystals are worth it but the ships are not so don’t waste your money. Since the last update I can’t click the X on the add after it’s over so I’ll be in the middle of a fight get killed on the boss and watch a add to get a continue but after the add the X In the top right is un clickable. So I have to close my app and restart it losing any progress. Now today I’ve hit another glitch. After I beat a boss on the quest page my ship just endlessly flys through space with no end in sight. I see there is a part two to this game so I don’t have my hopes up the developers will spend much money trying to fix the glitches.