I personally think that there is quite a decent amount of creativity that went into this game. With the idea of capturing ghosts, collecting coins, and gaining keys in order to progress through the game, I think with enough levels, this can become an absolutely solid game. However, I personally found the mouse-based controls to be somewhat uncomfortable. This is just me, but I prefer using another set of 4 keys to move the camera (such as an option to use the arrow keys rather than the mouse to move the camera). In addition, I found that the capture function when clicking on the left mouse key is somewhat weird, in my opinion, as I don’t see an indication of where I am capturing when I am playing this game.
This part of the review may be biased as I prefer being an all-keyboard player or all-mouse player over a keyboard+mouse hybrid game, but I personally think there should be an option where you can play the game with just the keyboard (example: You can use the “z” key to capture and the “x” key as the right-mouse key) function.
Besides the part where I managed to skip collecting a key with a few well-timed jumps, I think the game is also glitch free, although the UI for using keys may be revamped quite a bit, as I found it to be a bit bland.