Games Like Super Slinger

Hello soldier! The earth is under attack by some aliens, and we need your help! Grab whatever weapon is closest and move in! We need to bring them down, and send them back home! I'm calling you since you are trained to fight in rough areas unlike the rest of us. Forests, Deserts, and Tundra are being taken over, so please! Get over here!

Features:
Juicy jumping and dashing
Arcade like gameplay
Arena fighting
Progressive difficulty
4 big levels and 4 bosses
Bullet hell type boss fights
Funny enemy and player design

Please soldier, come quickly! Wait, you picked a slingshot? Why the heck would you pick that?!