Keplora

Players control a rotating cannon at the screen center, firing marbles at a colored chain advancing steadily along a track. When a fired marble embeds and forms a group of three or more same-colored orbs, they are eliminated. The gap closes automatically; if the closure creates another matching group, a chain reaction triggers and the chain retreats significantly. Skillfully exploit the retreat mechanic to buy time and clear the entire chain before it reaches the abyss.