implement stuck arrows into the ground spawn slimes at some distance from the hero, preferrable in location without slimes slimes should not intersect with player make gameover screen count scores make old corpses of slimes dissapear make arrows of finite amount + make collectable arrows add collectables (additional arrows, temporary speed, double strike?) figure out why drawing creates so many objects here: github.com/faiface/pixel.(*TrianglesData).Slice