Interesting game! A little bit confusing because I initially had no idea I could shoot back and thought the game was just about survival and dodging for as long as you could (maybe the first playthrough should introduce controls more, or have a crosshair where the mouse pointer is) but I liked that the game got right to the action quickly, and once I got into it I found that it had a decent variety of enemies, power-ups and strategy to it. Some good ol' arcade action!
That being said, its greatest strength is also its greatest weakness. To me, it's very impressive that the game was made in RPG Maker, but if we disregard that context, we're just left with a merely decent twin-stick shooter that is brought down by the various chains that RPG Maker has. This feels like something that would be made for a school project: decent for a first start, but missing various bells and whistles to make it really stand out on its own.
If, for example, this was not a game on its own, but a game within a game, like a replacement to the general combat for a big RPG or adventure game, it could be rather cool, and from what the description says that might be the case, so looking forward to that in that regard!