I really wanted to like this, but it ended up being a pretty big disappointment.

The art and music are great - it feels like aesthetics were their major focus. Playability suffers a lot though. The focus on detailed sprites means your ship and enemies are enormous despite the small screen, which gives you very little space to maneuver. It's even worse because your ship's speed is so fast; you want the ability to move slowly to dodge large waves of bullets, but you don't get that here. Since the screen is so crowded with large sprites enemies have a tendency to spawn out of nowhere, which makes it even more dangerous to move. It seems to be influenced by Cave games but doesn't really take into account that they make ship positioning a big part of gameplay - Gun Trails actively discourages you from moving around the screen or trying to stake out a position.

The super weapon feels like an attempt to do a take on Dodonpachi's hyper - a strong laser that does high damage, and that charges up as you maintain enemy combos. Unfortunately, the game intentionally takes away any stored charge when you encounter minibosses, which denies you the ability to use a stored up super weapon in exactly the time you'd want to use it. It's also the only way to slow down your ship's movement, which feels awkward and limited.

After playing I booted up GG Aleste again and it reminded me how other portable shmups on small screens have intentionally gone for smaller sprites to maintain maneuverability and the sense of a larger playfield. I found myself wishing Gun Trails had made the same choice.