Black Hole Attack

The goal of the game is to collect enough black hole weapons to kill the boss with those weapons.
Move the black hole around the world and swallow weapons. Try to absorb everything to the last crumb. On the computer, you can control the wasd keys, arrows, and the mouse. Time is limited, but you can improve the characteristics: the timer, the width of the hole, the strength of the weapon.
Upgrade the black hole, get more and more various weapons. And defeat strong bosses.