Probably my favorite shmup of all time, I've played this on-and-off for years at this point. The fact that levels are open-ended and side scrolling plus the upgrade system being currency-based means you really can set your own pace at which to play the game, and it makes speeding through the game super fun and rewarding. The final boss is kinda dumb tho ngl and was the thing keeping from me marking this game as complete all this time. The visuals and music are top-notch as well, the songs are catchy and upbeat and the game is vibrant and colorful. It may be a bit on the easy side of things in the realm of shoot-em-ups but it's still a solid challenge for those unacquainted to the genre, so it works well as a good beginner shmup too. shoutouts to opa opa