There are a total of 50 distinct levels spread across three diverse worlds in Alex The Alien.

The objective of Alex The Alien is to guide Alex, an alien who has landed on an unfamiliar planet, through various challenges to gather coins and unlock portals that will eventually lead him back to his spaceship.

In Alex The Alien, players must navigate through 50 unique levels across three different worlds, collecting coins scattered throughout the environment. These coins are used to unlock portals which transport Alex to new challenges. The ultimate goal is to reach Alex's spaceship and return him to safety.

While the description doesn't explicitly mention power-ups or special items, the focus seems to be on gathering coins to unlock portals. There may be additional elements within the game that enhance gameplay, but they are not detailed in the provided information.

Given that it is a platformer involving exploration and puzzle-solving, Alex The Alien could be suitable for a wide range of ages, though younger players might require assistance with some of the more challenging levels.

As players progress through the 50 levels across three worlds, the difficulty likely increases gradually, introducing new challenges and requiring better mastery of the controls and environment to successfully gather coins and unlock portals.