So, just how good at time waster games are you? Think you've got the stuff? Well, The World's Hardest Game 2.0 doesn't think you do.

Yes, amazingly, it's possible to have a sequel to a game called "The World's Hardest Game". It doesn't seem logically possible, since if the first one was actually the world's hardest, how could another one come along and share the moniker? It made me doubt the name in the first place. That is, until I tried the game.

The mechanics of the game are very simple. You are a small red square, and you need to move around the game board collecting yellow coins or keys, and make your way from the green starting area to the green end, without getting touched by the blue hazard balls. The only controls in the game are the arrow keys to control where your red square goes.

Like I said, it looks simple. But in practice, I gave up at level 4 after over 100 attempts. I wouldn't same I'm a video game expert, but I've certainly played my fair share of games in my time, and this one is certainly one of the most difficult.

How far can you get?

Gravitex 2 is a classic gravity-based time waster. You pick a direction and amount of power, and shoot a ball off into space where various orbs' gravitational pull affect its trajectory. The goal is to collect all the green coins and get the yellow ball safely to its goal.

Interestingly, the green coins are not persistent; if you collect one and get the ball to the goal, that coin does not return again if you replay the level. That means that you don't have to come up with a single magic trajectory that will collect every coin in one go, but instead you can tackle a level multiple times in multiple ways to try to conquer it.

The graphics in Gravitex 2 are simple but do the trick, which can also be said for the soundtrack. The game offers both mouse-based control, and keyboard control. Given that this is very much a trial-and-error based game, you'll want to get comfortable with the keyboard controls, though for very tough levels the only way to finely control the settings is to use the mouse.

Gravitex 2 is pretty much a perfect casual game for people who enjoy physics games. You can play it for five minutes on your coffee break, and come back to it for a few minutes on your lunch hour.