Nova Burst is a fast, visual chain-reaction puzzle. Tap a tile to ignite a burst, then watch it spread through adjacent matching tiles to form a reaction chain. Chain reactions of 4 or more cleanse corruption, while weaker bursts let corruption spread and damage stability. Longer chains increase multipliers, purge more void cells, and create bigger score spikes. Pick the best starting point, read the board, and set up satisfying cosmic explosions.