Funny game, love the art style and the music ! Would be definitively better with other players though :p
Good work for a jam, here's what I'll do to improve upon it : AI to have fun in solo, soundFX and visual feedbacks to the action to make it more alive and juicy, find a new mecanic for character to extend the gameplay, just moving falls a bit short, maybe add a rush or ability to shoot bugs or random bonuses on the map. There's potential in it :)