Really good game. I've never played a bullet hell game before but I think this one is really good.

Your ship can move in 8 directions and has a regular and special attack. You pick up gold from defeated enemies and when you get enough (very small amount) you can enter Vaunt mode.

About 5 seconds after you enter vaunt mode, you are temporarily invincible and while in it your damage and points are doubled. You can sustain Vaunt mode by collecting gold to prevent your meter from depleting. You can also trigger another invincible period by exiting Vaunt mode early but you won't be able to enter it again for a while (not too long). Vaunt mode is a great feature for this game. You can choose to enter it during a difficult portion of the level enter it as early as possible to get a high score.

The review says that I spend less than 3 hours on the game. It is a short game, however the levels are challenging really fun to play through (minus the last one). In order to unlock the last level of the game, you must beat all of the previous levels on Legendary. That may be a turn off for some but again the levels are short and its fun to see your leaderboard rank go up with each playthrough. I've only played with the first ship on solo but there are 3 other ships (7 if you have the DLC), challenge mode, and guantlet mode, giving players more content for their money.