ZeptoLab

Background
ZeptoLab is a Russian video game company founded in 2008. It's best known for the Cut the Rope series.

1st Logo (October 6, 2010-2019)
Visuals:
 * Still version: On a white background is the ZeptoLab logo, which is a lime green flask with "zeptolab" and a back-shadow zigzag-like shape inside it. The URL "www.zeptolab.com" and loading bar are seen below.
 * Animated version: On a white background, the green flask zooms in with "zeptolab" inside it. Bubbles are flying in the flask, forming the back-shadow zigzag-like shape.

Variants:
 * On Pudding Monsters, the letter "o" is replaced with an eye of an eponymous monster on the still version.
 * On Cut the Rope 2, the flask is gray at first. Then it fills up and the rest of the animation plays.
 * On Om Nom Stories, the logo is in-credit.

Technique: 2D animation.

Audio: A bubbling sound. None for the still version.

Availability: Was first seen on Cut the Rope. It has also appeared on Cut the Rope: Experiments, Cut the Rope: Time Travel, Cut the Rope 2 and Cut the Rope: Magic.


 * It can also be seen on King of Thieves, My Om Nom, and CATS: Crash Arena Turbo Stars.
 * The animated variant appeared on game trailers first, and made its first game appearance on Cut the Rope 2.
 * The still version still appears on new editions of Cut the Rope instead of the animated version.
 * The in-credit variant appears on Om Nom Stories.

2nd Logo (2019-)
Visuals: A white, bubbling flask with a "Z" cut out of it appears on a lime green gradient background. Below the flask is this:

zeptolab green

Below the logo is the Koukoi logo. Both logos are still.

Technique: Cutting effects.

Audio: None.

Availability: Unknown.