Blackhole is a puzzle-platform game. When a spaceship designed to close black holes to protect planet Earth is inadvertently sucked up by one it's up to the coffee assistant to save the crew and re-assemble the ship.
The game consists of an overworld and individual levels each containing puzzles. The ship's AI guides the player and advances the story while the player runs, jumps and collects "selfburns". The primary puzzle is to use rotation pads to rotate the world and avoid jumping on them when you need the world in a certain position. Classic themes like lava (touch it and you die) and ice (slippery floors) are added to make the player's tasks harder. When the player dies he immediately respawns at the start of the level to retry.
Each level has multiple selfburns and can be revisited later on. Only one needs to be collected to advance to the next level. Certain gates in the overworld will require the player to have a minimum amount. When finishing a level the duration it took is saved as a high score which allows for people to compete.