This is a fun "bullet hell" game with a good ceiling for entry. Not only does it teach you how to play the game, but it also helps you slowly increase your skill until you're able to beat the bosses and unlock new cool ships.
The best part is there's really great music that rocks along as you play. It's like I'm playing some of my favorite Sega arcade games.
For sure, I plan on continuing to practice this game to unlock more and increase my skill