Im confused as to how to play the game, I am allways outnumbered by the sprouts
Buy a couple of items early to get another two attacks. Try to hit multiple enemies at the same time or collide them into each other and terrain. Right-click to see their threat range so that you'll know which ones are an immediate threat to you and which can be avoided. Stay close to the center to have more movement options while keeping out of any threatened spaces.