Just as a quick summary of what I think about this game, I think it is absolutely really really good. The Garfield references and themed designs are excellent, the pixel art is amazingly stylistic and beautiful and the music is absolutely astounded, and the difficulty and gameplay are top notch. The mouse based controls are extremely satisfying to master, having you learn to move quickly but with intent to not take damage, the difficulty also being great, nothing ever being too easy. Not to even mention the effects this game uses, I absolutely loved the voice lines and animations present in the game, they absolutely add so much character and grandeur to the experience. The pixel art and SFX were also very nostalgic to me in a way too. Even though I missed the age these types of videos tended to come from, I reckon my incredible amount of time spent playing Cave Story and Galaga as a kid contributed to how refreshingly familiar it felt.
Genuinely cannot stress the incredible amount of fun I had with this game. Lumpy did a really good job making this, crazy this amount of fun and quality is free.