LÖVE

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for _,obj in pairs(enemiess) do
		if atack:collidesWith(obj) then 
		HC.remove(obj)
		player.health = player.health + 1000 -- just to check if the collision still works
		end

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enemiess = {
                                      enemy1=HC.addRectangle(blabla)
                                          ... and more enemies
}

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function love.load()
	HC = require('hardoncollider')(100, on_collide)
	hero = HC:addCircle(300, 100, 25)
	shapes = {}
	for i=1, 4 do
		shapes[i] = HC:addRectangle(i * 100, i * 100, 100, 100)
	end
end
function love.update(dt)
	local x, y, s = 0, 0, 200 * dt
	if love.keyboard.isDown("left") then x = -s
	elseif love.keyboard.isDown("right") then x = s
	end
	if love.keyboard.isDown("up") then y = -s
	elseif love.keyboard.isDown("down") then y = s
	end
	hero:move(x, y)
	HC:update(dt)
end
function love.draw()
	hero:draw('line', 24)
	for i=1, #shapes do
		shapes[i]:draw('line')
	end
end
function love.mousereleased(x, y, b)
	for i=1, #shapes do
		if shapes[i]:contains(x, y) then
			HC:remove(shapes[i])
			table.remove(shapes, i)
			break
		end
	end
end
function on_collide(dt, a, b, x,y)
	a:move(x,y)
end

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Remove a shape from the collision detection system. Note that if you remove a shape in the collide() callback, other shapes might still have collided with it, so the shape will be argument to the other calls of collide(). In any case, the stop() callback will be called in the next call to update for each shape which the removed shape collided with.