Giganimals Gigablox is an online slot game that offers players an amusing experience with a humorous take on the theme of UFOs and farm animals. The game boasts several features and mechanics that aim to keep players engaged.

- Gigablox Mechanic: On each spin, the reels merge and form mega symbols in sizes 2x2, 3x3, 4x4, 5x5, or 6x6. These symbols count as 1x1 sized symbols in win calculations, but they can lead to some significant wins.
- Wild Symbols: The Wild symbol substitutes for pay symbols and can help complete or improve wins. Wilds also pay up to 20x your stake for 6 wilds on the same payline.
- Wild Surge: This feature triggers at random and turns at least one of the four low-value symbols into wilds. Low-value symbols partaking in a win are collected in their respective UFO meters to increase the multiplier boost between x1 and x5. Filling a meter triggers the Collection Free Spins round.
- Collection Free Spins: This feature is triggered by filling the UFO meters and offers players between 5 and 24 free spins. Since each meter corresponds to a low-value symbol, that symbol turns wild during the feature. Filling new meters upgrades other symbols, and you get +2 extra spins.
- Bonus Round: The bonus round can be triggered by landing 5+ scatter symbols in view or by filling the UFO meters during the base game. The feature offers free spins and turns low-value symbols into wilds, and players get +2 extra spins for each new meter filled.
- Bonus Buy: This menu is available in some markets and offers players the option to purchase free spins with a certain number of wild symbols already in play.
- Maximum Payout: the game offers a solid 20,000x payout potential, with premium alien symbols paying between 4 and 8 x your stake for 6 of a kind wins.

Overall, Giganimals Gigablox is an amusing online slot game that combines several features and mechanics to keep players engaged. With a solid payout potential and the opportunity to trigger several bonus rounds, players can enjoy the game for hours on end.