Side-scrolling platformer. Run, jump, double-jump, dodge spikes, bounce off springs, reach the portal at the end.
Open-grid tower defense. Build a maze of elemental Bloo towers, defend the portal through endless escalating waves.
Idle aquarium. Tap to drop food, watch your Bloos grow from eggs into glowing elders. Comes back to find more.
Top-down endless auto-shooter. Steer through gates to multiply, tap to fire, mow down enemies, survive boss walls.