5 stars: best game ever! great way to kill time. lots of little side games within and loads of events with active game developers who keep the game going. its not perfect, crashes here and there but overall a really fun, no pressure to advance game you can pop on in your spare time.
5 stars: After playing multiple shmups on googleplay. Some are too ad heavy or unreasonable pay walls. Galaxiga so far only asks for ads to do a X2 multiplier or watch x number of videos to buy a powerful ship. Otherwise you can pay real money. So I'm able to play the game without being bullied by ads. So far it seems fair and is fun to play. I will edit later to see if it remains this way after some more time playing it.
4 stars: This game is an excellent one that anyone can enjoy and appreciate, but my main problem with it is that, powerful weapons can not be unlocked unless a certain amount is being paid online, and the life time of the starship has to be increased as it approaches difficult levels; these things need to be better improved without delay. That's my major concern about the game, and have a great day!!
3 stars: It's fun at the beginning, but progress is slow to get more powerful ships. Lots of ads to watch to gain upgrades, gems, etc. I still like playing as I still want to get 1-2 tier 3 ships. Also to update the game you sometimes have to uninstall and reinstall again. Update: in response to your response, no I will not give you more stars. Fewer stars should motivate...