I think the visual style has a lot of potential that isn't quite met. The cartoony, pre-rendered graphics give this a really unique look, stages just get kinda monotonous fairly quickly.
I see a lotta the inspiration from old Konami side-scrolling shooters like Gradius/Parodius in the gameplay, but I think this game would benefit a lot from also examining their more "quality over quantity" approach to level design. They have fewer levels, but much more elaborate set pieces that are always throwing something new at the player, and I'd personally consider cutting the level count down in favor of just giving each level more love. It looks super charming and has a very distinct personality to it that I think could shine through a lot better if the levels simply had more to them. Plus, having fewer levels while making them more interesting will make the player even more inclined to replay and aim for a higher score, as I see that's something you encourage players to do.
The gameplay also feels fairly nice, I will say. Upgrade system is pretty rewarding and it's nice to see my kiwi get stronger over the course of the stage. I just think there's a lotta potential here, it has such a charming style to it that could be used to make something very memorable!
GROBLIN SURVIVORS 
Jetpack Kiwi 
