Chain reactions ensure that when cluster wins disappear upon payout, their empty spaces are filled with new symbols. Blobby’s flying saucer hovers above the reels, covering a 3x3 area in the middle. When there are cluster wins right next to the spacecraft, lights on the disc glow up, and Blobby activates 1 of the progressing features on the next spin when all LEDs are alight.

When you activate the central 3x3 cluster on Blobby’s spaceship, one of the game’s 3 features starts on the next spin. The features activate as follows: - Upgrader, - Frenzy, and - Supersize. Once a feature is unlocked, it may activate randomly on any spin. Whenever you activate Blobby’s spacecraft after all 3 features have been unlocked, Blobby flies into the Invader Spins for 10 Free Spins.

The Upgrader is the first level of progressing features. Blobby shoots laser rays at low-paying symbols external to winning clusters to turn them into higher-paying symbols, potentially completing clusters to pay out. He may upgrade 8-24 symbols in the Main Game and 11-31 symbols during Invader Spins.

The Frenzy is the second level of progressing features. Blobby’s intergalactic laser rays charge at randomly selected symbols, shapeshifting them into Wilds. Blobby may change 5-20 symbols into Wilds, which substitute for all paying symbols.

The Supersize is the third and last level of progressing features. Blobby’s shooters will electrify 2-4 high-paying or Wild Symbols, turning them into 3x3-sized Super Symbols.

Triggered each time Blobby's UFO is activated after all of the 3 other features have been unlocked. Each activation awards 10 Free Spins. Invader Spins trigger in the same spin in which they have been awarded. During Invader Spins, the features trigger at an increased rate.