It is full of bugs and bad design choises. For instance I tried a game level with one character, and after upgrading him to level 8 I died at the end of the level and by mistake I chose to start with a different character... from LEVEL 1! The other character with Level 8 is wasted, I dont understand the logic behind this. And secondly at the end of the first game level, after I restarted with a different character form level 1, I defeated the boss and found myself in a weird bug where I could go to the right indeffinetly. The level would not end, no matter what I did. So I aborted and restarted the campaign only to find that the first artefact is retreived but my Character is again at level 1. WTF!!! I reached level 13 in the last game level what am I supposed to do with him in game level 2, where everything is harder!!!