Black Hole Blitz is a fighting game that asks a player to strategically attack enemy towers and bases with various blue, stickman soldiers and military equipment collected via a black hole. The player's only way to direct troops on the field of battle is to first round them up with the black hole and then deposit them within range of the enemy's towers and guns.
Beyond destroying towers in various environments, the player must attempt to grow the black hole's capacity, size and speed via upgrades paid for with coins won at the end of each battle. The player can also increase the balance of the coins displayed at the upper right corner of the screen by watching advertisements.
Black Hole Blitz gives the player access to soldiers that offer a wide range of weapons and attack capabilities, including soldiers with swords, guns and backpack explosives and giants with spiked clubs. Later in the game, the player can even obtain tanks.
Soldiers who survive an attack on a tower move on to the next tower and fight automatically. The player can also rapidly slide the hole to an earlier part of the battlefield to pick up units not available along the front lines.