Touch and drag anywhere to move — a virtual stick appears under your finger. Keyboard: WASD or arrows, P to pause. You auto-fire at the nearest cell. Contact with any cell costs HP; taking damage resets your combo.
Cell 10 · Spore 30 · Mother cell 500. Chain kills within 2.5s to build a combo — every 5 adds +0.5× multiplier. Strain multiplies everything: Calm 1×, Hot 1.5×, Lethal 2×.