Pixel Soldier review:
Difficulty scales up quickly but effectively; with simple sound and graphics, it looks like you were able to focus on developing interesting/satisfying mechanics, and on that front this game really delivers. The effect of hopping around the screen to dodge bullets is made to be a bit more rewarding because it also improves the speed with which you can dodge enemy missiles, making a skilled player able to avoid taking damage while knocking out the challenges set before them.
Supports a waves/ boss style; I'd say something a little clearer in the game itself about what the controls are might be helpful, the first time I was sure what all my options were was after I decided to try remapping them to see if I was missing anything. (They are in the gamepage though so that is helpful as well).
Music and graphics are a bit on the simple side but I feel like that suits the game's style and contributes to the overall gameboy feel. Bosses drop health boosters but I didn't see any power-ups along the way, I'd say that's what I want out of potential future additions to this game's development: the ability to shoot different projectiles, more of them, etc, as a direct result of the bosses killed and such to keep the gameplay robust as players progress.
Overall I'd give it a 4/5 stars, especially considering it's a GBJam game but looks rather polished.
My game is The Curse of Talon Cyphyr